Patent US3672100A successfully refreshed from Google Patents.
Patent US2834556A successfully refreshed from Google Patents.
US2834556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension control device
Assignee: Individual
•
Filing: 1954-02-16
•
Granted: 1958-05-13
•
Expires: 1974-02-16
Abstract
No abstract record available.
Inventors
- 👤 Kraft August Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:15
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/003; B21C1/00; B21C1/02; B21C1/12; B65; B65H; B65H59/00; B65H59/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1919607A
Cited
GB509544A
Cited
US2214355A
Cited
US2317290A
Cited
US2345765A
Cited
US2598950A
Cited
US2597133A
Cited
US2590604A
Cited
US2544467A
Cited
US2662264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |