Patent US2053740A successfully refreshed from Google Patents.
US2053740A
Expired / Lapsed
US
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Process of preserving
Assignee: EIDP Inc
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Filing: 1934-09-28
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Granted: 1936-09-08
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Expires: 1954-09-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Reichert
- 👤 Robert W Mcallister
- 👤 Wilbie S Hinegardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:47
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/788; A23B11/00; A23B11/30; A23B11/35
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) | 1939-09-08 | 1940-03-09 | 1940-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-08 | 1944-03-09 | 1944-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-08 | 1948-03-09 | 1948-09-08 | $7700.00 | Window Closed / Lapsed |