Patent US1501736A successfully refreshed from Google Patents.
US1501736A
Expired / Lapsed
US
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Rope guard for crane trolleys
Assignee: Whiting Corp
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Filing: 1923-01-27
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Granted: 1924-07-15
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Expires: 1943-01-27
Abstract
No abstract record available.
Inventors
- 👤 Bradford H Whiting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:19
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/28; B66D1/36; B66D2700/00; B66D2700/01; B66D2700/0183; B66D2700/0191
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-07-15 | 1928-01-14 | 1928-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-15 | 1932-01-14 | 1932-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-15 | 1936-01-14 | 1936-07-15 | $7700.00 | Window Closed / Lapsed |