US1797580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of rubber tubes
Assignee: Morgan and Wright
•
Filing: 1925-06-23
•
Granted: 1931-03-24
•
Expires: 1945-06-23
Abstract
No abstract record available.
Inventors
- 👤 Hopkinson Ernest
- 👤 Willis A Gibbons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:33
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29K; B29K2021/00; Y; Y10; Y10S; Y10S118/00; Y10S118/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-03-23 | 1934-09-22 | 1935-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-23 | 1938-09-22 | 1939-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-23 | 1942-09-22 | 1943-03-24 | $7700.00 | Window Closed / Lapsed |