Patent US2641356A successfully refreshed from Google Patents.
US2641356A
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Assignee: General American Transportation Corp
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Filing: 1947-11-12
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Granted: 1953-06-09
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Expires: 1967-11-12
Abstract
No abstract record available.
Inventors
- 👤 Henry M Hunter
- 👤 Carrel C Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:32
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/44; B01D33/46; B01D33/466; B01D33/80; B01D33/82; B01D35/00; B01D35/16; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US725284A
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US803777A
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US1274548A
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US1491401A
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US1579178A
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US1829392A
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US1972848A
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US1991432A
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US2260812A
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US2385238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |