US2496754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended type hoist
Assignee: Manning Maxwell and Moore Inc
•
Filing: 1945-09-08
•
Granted: 1950-02-07
•
Expires: 1965-09-08
Abstract
No abstract record available.
Inventors
- 👤 Schramm Christopher Henry
- 👤 Ralph E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:17
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/18; B66D3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE281874C
Cited
DE432753C
Cited
US1550114A
Cited
US1455369A
Cited
US1561722A
Cited
US1938071A
Cited
US1945712A
Cited
US2244221A
Cited
US2371352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |