Patent US3086766A successfully refreshed from Google Patents.
US3086766A
Expired / Lapsed
US
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Closure and operating mechanism therefor
Assignee: Individual
•
Filing: 1961-02-27
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Granted: 1963-04-23
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Harvey E Woodin
- 👤 Carl A Woodin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:28
CPC Classifications
A; A47; A47G; A47G29/00; A47G29/14; E; E05; E05F; E05F11/00; E05F11/38; E05F11/44; E05F15/00; E05F15/60; E05F15/603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A CLOSURE AND OPERATING MECHANISM THEREFOR COMPRISING (A) A FRAME LET INTO A WALL OF A BUILDING AND HAVING (B) AN OPENING THEREIN, (C) A CLOSURE SLIDABLE SUBSTANTIALLY VERTICALLY IN THE FRAME IN MOVING INTO AND OUT OF THE OPENING AND BIASED BY GRAVITY TO A LOWERED POSITION, (D) ELEVATING MEANS CONNECTED TO THE CLOSURE FOR RAISING THE SAME, (E) DRIVE MEANS CONNECTED TO THE ELEVATING MEANS FOR DRIVING THE ELEVATING MEANS BOTH UPWARDLY AND DOWNWARDLY, AND
Claim 2
Dependent Claim
77 words
A CLOSURE AND OPERATING MECHANISM THEREFOR COMPRISING (A) A FRAME LET INTO A WALL OF A BUILDING AND HAVING (B) AN OPENING THEREIN, (C) A CLOSURE SLIDABLE SUBSTANTIALLY VERTICALLY IN THE FRAME IN MOVING INTO AND OUT OF THE OPENING AND BIASED BY GRAVITY TO A LOWERED POSITION, (D) ELEVATING MEANS CONNECTED TO THE CLOSURE FOR RAISING THE SAME, (E) DRIVE MEANS CONNECTED TO THE ELEVATING MEANS FOR DRIVING THE ELEVATING MEANS BOTH UPWARDLY AND DOWNWARDLY, AND
References Cited (Backward Citations)
US1260435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |