Patent US4960631A successfully refreshed from Google Patents.
US4960631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture seal for aircraft windows
Assignee: PPG Industries Inc
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Filing: 1988-12-30
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Granted: 1990-10-02
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Expires: 2008-12-30
Abstract
Abstract A laminated transparency includes a flexible epoxy moisture seal about the periphery of the transparency. The edge of the transparency may be cleaned and primed with a silane surface treatment.
Inventors
- 👤 Patricia B. Walters
- 👤 David C. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:31
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64C1/1492; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10293; B32B17/10302; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31525; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/31598; Y10T428/31601; Y10T428/31609; Y10T428/31612; Y10T428/31627; Y10T428/3163; Y10T428/31652; Y10T428/31667; Y10T428/31855; Y10T428/31859
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
28 words
A laminated transparency comprising: a rigid substrate; a flexible ply secured to said rigid substrate; and a flexible epoxy moisture sealant about the peripheral edge of said transparency.
Claim 2
Dependent Claim
28 words
A laminated transparency comprising: a rigid substrate; a flexible ply secured to said rigid substrate; and a flexible epoxy moisture sealant about the peripheral edge of said transparency.
Claim 3
Dependent Claim
27 words
The transparency as in claim 1 wherein said substrate is a first substrate and further including additional substrates secured to said flexible ply or said first substrate.
Claim 4
Dependent Claim
20 words
The transparency as in claim 2 wherein said substrates are selected from a class including glass, polycarbonate, and acrylic plastics.
Claim 5
Dependent Claim
21 words
The transparency as in claim 3 wherein said flexible ply is selected from a class including polyvinyl butyral, silicone, and urethane.
Claim 6
Dependent Claim
18 words
The transparency as in claim 4 further including a primer layer between said sealant and said peripheral edge.
Claim 7
Dependent Claim
13 words
The transparency as in claim 5 wherein said primer is a silane material.
Claim 8
Dependent Claim
19 words
The transparency as in claim 4 further including means to secure said transparency to an opening of a vehicle.
Claim 9
Dependent Claim
21 words
The transparency as in claim 7 wherein said securing means includes rigid attachment means secured about the periphery of said transparency.
Claim 10
Dependent Claim
28 words
a laminated transparency comprising: a rigid substrate; a urethane ply secured to said rigid substrate; and a flexible epoxy moisture sealant about the peripheral edge of said transparency.
Claim 11
Dependent Claim
28 words
a laminated transparency comprising: a rigid substrate; a urethane ply secured to said rigid substrate; and a flexible epoxy moisture sealant about the peripheral edge of said transparency.
Claim 12
Dependent Claim
27 words
The transparency as in claim 9 wherein said substrate is a first substrate and further including additional substrates secured to said urethane ply or said first substrate.
Claim 13
Dependent Claim
20 words
The transparency as in claim 10 wherein said substrates are selected from a class including glass, polycarbonate, and acrylic plastics.
Claim 14
Dependent Claim
18 words
The transparency as in claim 11 further including a primer layer between said sealant and said peripheral edge.
Claim 15
Dependent Claim
13 words
The transparency as in claim 12 wherein said primer is a silane material.
Claim 16
Dependent Claim
19 words
The transparency as in claim 11 further including means to secure said transparency to an opening of a vehicle.
Claim 17
Dependent Claim
21 words
The transparency as in claim 14 wherein said securing means includes rigid attachment means secured about the periphery of said transparency.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-01 | 1994-04-02 | 1994-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-01 | 1998-04-02 | 1998-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-01 | 2002-04-02 | 2002-10-02 | $7700.00 | Window Closed / Lapsed |