US2327223A
Expired / Lapsed
US
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Assignee: HERBERT F JOHNSON
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Filing: 1943-04-08
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Granted: 1943-08-17
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Expires: 1963-04-08
Abstract
No abstract record available.
Inventors
- 👤 Silver Leah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:34
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/04; B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/20; B26D1/205; B26D7/00; B26D7/01; B26D7/02; B26D7/025; B26D2007/0012; B26D2007/0087; Y; Y10; Y10T; Y10T83/00; Y10T83/303; Y10T83/667; Y10T83/674; Y10T83/748; Y10T83/7487; Y10T83/7533; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/869; Y10T83/872; Y10T83/8821; Y10T83/8822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-08-16 | 1947-02-15 | 1947-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-16 | 1951-02-15 | 1951-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-16 | 1955-02-15 | 1955-08-17 | $7700.00 | Window Closed / Lapsed |