US3416990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber-reinforced polymers
Assignee: Hercules LLC
•
Filing: 1965-08-06
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Granted: 1968-12-17
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Expires: 1985-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Anderson E Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:34
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; B; B32; B32B; B32B27/00; B32B27/12; C08J; C08J5/00; C08J5/04; C08J5/0405; C08J5/043; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08L; C08L23/00; C08L23/02; C08L23/10; C08J2351/00; C08J2351/06; C08L51/00; C08L51/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A LAMIANTE COMPRISING LAYERS OF GLASS FABRIC LAMINATED IN A MATRIX OF CRYSTALLINE POLYPROPYLENE MODIFIED BY CHEMICAL REACTION WITH ABOUT 0.15 TO 5% MALEIC ANHYDRIDE.
Claim 2
Dependent Claim
25 words
A LAMIANTE COMPRISING LAYERS OF GLASS FABRIC LAMINATED IN A MATRIX OF CRYSTALLINE POLYPROPYLENE MODIFIED BY CHEMICAL REACTION WITH ABOUT 0.15 TO 5% MALEIC ANHYDRIDE.
References Cited (Backward Citations)
US3264156A
Cited
US3290415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |