US2476341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubberlike copolymers of allyl esters
Assignee: Armstrong World Industries Inc
•
Filing: 1943-12-31
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Granted: 1949-07-19
•
Expires: 1963-12-31
Abstract
No abstract record available.
Inventors
- 👤 Karl H Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:22
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/12; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2109943A
Cited
US2066330A
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US2273891A
Cited
US2249768A
Cited
US2390164A
Cited
US2313233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |