US2637524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulley block
Assignee: Individual
•
Filing: 1949-08-15
•
Granted: 1953-05-05
•
Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 Huvendick Karl
- 👤 Wilhelmi Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:34
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/12; B66D3/16; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1729262A
Cited
US1730433A
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US1913861A
Cited
US2243361A
Cited
US2256296A
Cited
US2343884A
Cited
US2489022A
Cited
US2364471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |