Patent US3021492A successfully refreshed from Google Patents.
US2660772A
Expired / Lapsed
US
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Holder for fabric, namely diapers
Assignee: Individual
•
Filing: 1949-04-09
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Granted: 1953-12-01
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Expires: 1969-04-09
Abstract
No abstract record available.
Inventors
- 👤 Earl V Ehrhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:10
CPC Classifications
D; D06; D06F; D06F41/00; Y; Y10; Y10T; Y10T24/00; Y10T24/30; Y10T24/304; Y10T24/307; Y10T24/34; Y10T24/3427; Y10T24/346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |