US2465714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple stage power mechanism
Assignee: EDWARD U DEMMER
•
Filing: 1943-06-14
•
Granted: 1949-03-29
•
Expires: 1963-06-14
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:49
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR479434A
Cited
US762627A
Cited
US1130884A
Cited
US1430359A
Cited
US1845797A
Cited
US2064379A
Cited
US2092580A
Cited
US2197075A
Cited
US2307910A
Cited
US2260491A
Cited
US2367852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |