US2343181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tension control
Assignee: Individual
•
Filing: 1940-04-03
•
Granted: 1944-02-29
•
Expires: 1960-04-03
Abstract
No abstract record available.
Inventors
- 👤 Winfield B Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/38; B65H59/381; B21; B21C; B21C47/00; B21C47/003; B65H59/02; B65H59/04; B65H2553/00; B65H2553/10; B65H2555/00; B65H2555/10; B65H2555/11; B65H2701/00; B65H2701/30; B65H2701/31
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) | 1947-02-28 | 1947-08-30 | 1948-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-28 | 1951-08-30 | 1952-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-28 | 1955-08-30 | 1956-02-29 | $7700.00 | Window Closed / Lapsed |