Patent US3803754A successfully refreshed from Google Patents.
Patent US1675755A successfully refreshed from Google Patents.
US1675755A
Expired / Lapsed
US
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Assignee: Individual
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Filing: 1928-02-10
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Granted: 1928-07-03
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Expires: 1948-02-10
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth E Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:44
CPC Classifications
B; B42; B42F; B42F1/00; B42F1/02; B42F1/04; B42F1/08; F; F16; F16B; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/248; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/346; Y10T24/3464
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) | 1931-07-03 | 1932-01-02 | 1932-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-03 | 1936-01-02 | 1936-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-03 | 1940-01-02 | 1940-07-03 | $7700.00 | Window Closed / Lapsed |