US3378434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-resistant paper-base epoxy resin laminates
Assignee: Westinghouse Electric Corp
•
Filing: 1964-06-18
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Granted: 1968-04-16
•
Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 John A Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:46
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/34; C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C08G59/30; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/52; D21H5/00; D21H5/0002; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1955888A
Cited
US2590211A
Cited
US2833681A
Cited
US3058946A
Cited
US3034939A
Cited
US3189513A
Cited
US3294742A
Cited
US3268619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |