Patent US2258820A successfully refreshed from Google Patents.
US1699274A
Expired / Lapsed
US
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Process and product for preventing discoloration of canned foods
Assignee: NAT CANNERS ASS
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Filing: 1926-03-13
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Granted: 1929-01-15
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Expires: 1946-03-13
Abstract
No abstract record available.
Inventors
- 👤 George S Bohart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:27
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/40; C09D7/60; C09D7/61; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
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) | 1932-01-15 | 1932-07-16 | 1933-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-01-15 | 1936-07-16 | 1937-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-01-15 | 1940-07-16 | 1941-01-15 | $7700.00 | Window Closed / Lapsed |