Patent US2683619A successfully refreshed from Google Patents.
US2683619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car door operating means
Assignee: Individual
•
Filing: 1952-02-21
•
Granted: 1954-07-13
•
Expires: 1972-02-21
Abstract
No abstract record available.
Inventors
- 👤 Anderson George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:05
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/02; E05F11/08; E05F11/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1195882A
Cited
US1138117A
Cited
US1150468A
Cited
US1177471A
Cited
US1211308A
Cited
US1222820A
Cited
US1347193A
Cited
US1609815A
Cited
US1704476A
Cited
GB254579A
Cited
US1760528A
Cited
US1849887A
Cited
US2573340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |