US2651427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile lifting and lowering apparatus
Assignee: Individual
•
Filing: 1950-10-17
•
Granted: 1953-09-08
•
Expires: 1970-10-17
Abstract
No abstract record available.
Inventors
- 👤 Butler Robert Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:16
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/26; B62B1/264; B62B2202/00; B62B2202/02; B62B2202/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1000102A
Cited
US1530014A
Cited
FR638432A
Cited
AU1365628A
Cited
US2240723A
Cited
US2362749A
Cited
US2424852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |