US2812564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension devices for belts
Assignee: Individual
•
Filing: 1954-06-18
•
Granted: 1957-11-12
•
Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Marjorie F Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:35
CPC Classifications
A; A44; A44B; A44B11/00; A44B11/02; A44B11/06; Y; Y10; Y10T; Y10T24/00; Y10T24/40; Y10T24/4002; Y10T24/4012; Y10T24/4016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2690601A
Cited
GB189517096A
Cited
US670502A
Cited
US1192552A
Cited
US1744196A
Cited
US1739057A
Cited
US1745548A
Cited
US1918115A
Cited
US2651825A
Cited
US2720689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |