US2461963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber hydrochloride film
Assignee: Wingfoot Corp
•
Filing: 1945-10-23
•
Granted: 1949-02-15
•
Expires: 1965-10-23
Abstract
No abstract record available.
Inventors
- 👤 La Verne E Cheyney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:31
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; B; B65; B65D; B65D65/00; B65D65/38; B65D65/40; B65D81/00; B65D81/24; B65D81/28; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |