Patent US1631628A successfully refreshed from Google Patents.
US1643771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rivet
Assignee: JOHN D SMALL
•
Filing: 1926-12-30
•
Granted: 1927-09-27
•
Expires: 1946-12-30
Abstract
No abstract record available.
Inventors
- 👤 John W Iseman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1081
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) | 1930-09-26 | 1931-03-28 | 1931-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-09-26 | 1935-03-28 | 1935-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-09-26 | 1939-03-28 | 1939-09-27 | $7700.00 | Window Closed / Lapsed |