Patent US1574481A successfully refreshed from Google Patents.
US1574481A
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Apparatus for and process of making pulley units
Assignee: Individual
•
Filing: 1923-09-29
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Granted: 1926-02-23
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Expires: 1943-09-29
Abstract
No abstract record available.
Inventors
- 👤 William T Hensley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:15
CPC Classifications
B; B31; B31D; B31D5/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1074; Y10T156/1075; Y10T156/1077; Y10T156/12; Y10T156/125; Y10T156/1313; Y10T29/00; Y10T29/34; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078; Y10T29/49453; Y10T29/49455; Y10T29/49456; Y10T29/51; Y10T29/5136; Y10T29/5137; Y10T29/5143; Y10T29/5145; Y10T29/5191
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) | 1929-02-22 | 1929-08-24 | 1930-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-22 | 1933-08-24 | 1934-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-22 | 1937-08-24 | 1938-02-23 | $7700.00 | Window Closed / Lapsed |