Patent US2812733A successfully refreshed from Google Patents.
US2812733A
Expired / Lapsed
US
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Apparatus for making waistbands for trousers
Assignee: Individual
•
Filing: 1954-08-30
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Granted: 1957-11-12
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Expires: 1974-08-30
Abstract
No abstract record available.
Inventors
- 👤 Val Ronald W Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:09
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/06; D05B35/062; D05B29/00; D05B29/06; D05D; D05D2303/00; D05D2303/20; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |