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US2812564A
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US
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Tension devices for belts
Assignee: Individual
•
Filing: 1954-06-18
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Granted: 1957-11-12
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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
2026-11-03 19:47
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
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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 |