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US1538650A
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US
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Soda-lime composition of matter useful as a gas absorbent
Assignee: CHESTER M WOOLWORTH
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Filing: 1923-01-06
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Granted: 1925-05-19
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Expires: 1943-01-06
Abstract
No abstract record available.
Inventors
- 👤 Peacock William
- 👤 Gray Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:04
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/20; C01G; C01G3/00; C01G3/12
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) | 1928-05-18 | 1928-11-17 | 1929-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-05-18 | 1932-11-17 | 1933-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-05-18 | 1936-11-17 | 1937-05-19 | $7700.00 | Window Closed / Lapsed |