Patent US3526444A successfully refreshed from Google Patents.
Patent US2668033A successfully refreshed from Google Patents.
US2668033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting
Assignee: Individual
•
Filing: 1945-07-07
•
Granted: 1954-02-02
•
Expires: 1965-07-07
Abstract
No abstract record available.
Inventors
- 👤 Norman E Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:35
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/06; F16F13/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2080919A
Cited
FR50180E
Cited
US2351427A
Cited
US2379763A
Cited
US2382372A
Cited
US2380899A
Cited
US2535080A
Cited
US2539443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |