US2567520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension regulation coil spring
Assignee: Individual
•
Filing: 1948-10-11
•
Granted: 1951-09-11
•
Expires: 1968-10-11
Abstract
No abstract record available.
Inventors
- 👤 William K Mcinerney
- 👤 James M Mcinerney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:38
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058; B60N2/7064
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US198833A
Cited
US683344A
Cited
US1254314A
Cited
US1192510A
Cited
US1333801A
Cited
US1544237A
Cited
US1544415A
Cited
US1931744A
Cited
US2247543A
Cited
US2241039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |