US1652299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for tension control
Assignee: Individual
•
Filing: 1921-10-18
•
Granted: 1927-12-13
•
Expires: 1941-10-18
Abstract
No abstract record available.
Inventors
- 👤 Charles E Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/06; B65H23/08; B65H23/085; B65H23/063
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) | 1930-12-12 | 1931-06-13 | 1931-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-12-12 | 1935-06-13 | 1935-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-12-12 | 1939-06-13 | 1939-12-13 | $7700.00 | Window Closed / Lapsed |