US3513064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite polyfluorocarbon sheet material
Assignee: EIDP Inc
•
Filing: 1966-04-27
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Granted: 1970-05-19
•
Expires: 1986-04-27
Abstract
No abstract record available.
Inventors
- 👤 Melvin W Westley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:16
CPC Classifications
B; B32; B32B; B32B27/00; A; A41; A41D; A41D31/00; A41D31/04; A41D31/10; A41D31/102; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/3878
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2983624A
Cited
US2946763A
Cited
US3025185A
Cited
US2968649A
Cited
US3085083A
Cited
US3274089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |