US2399142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal dissociation of monoethanolamine salts
Assignee: Girdler Corp
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Filing: 1942-06-22
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Granted: 1946-04-23
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Expires: 1962-06-22
Abstract
No abstract record available.
Inventors
- 👤 Robert M Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:40
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/1425; C; C10; C10K; C10K1/00; C10K1/08; C10K1/16; B01D2257/00; B01D2257/30; B01D2257/304; B01D2257/50; B01D2257/504; B01D53/1456; B01D53/1462; Y; Y02; Y02P; Y02P20/00; Y02P20/151
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) | 1949-04-22 | 1949-10-22 | 1950-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-22 | 1953-10-22 | 1954-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-22 | 1957-10-22 | 1958-04-23 | $7700.00 | Window Closed / Lapsed |