Patent US1985282A successfully refreshed from Google Patents.
US1985282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm pump
Assignee: Individual
•
Filing: 1934-03-30
•
Granted: 1934-12-25
•
Expires: 1954-03-30
Abstract
No abstract record available.
Inventors
- 👤 William C Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M59/00; F02M59/12; F02M59/14; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1323
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1937-12-24 | 1938-06-25 | 1938-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-24 | 1942-06-25 | 1942-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-24 | 1946-06-25 | 1946-12-25 | $7700.00 | Window Closed / Lapsed |