US2395842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas absorbent material and process of making the same
Assignee: Individual
•
Filing: 1930-07-14
•
Granted: 1946-03-05
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Expires: 1950-07-14
Abstract
No abstract record available.
Inventors
- 👤 Borgstrom Parry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
C; C10; C10K; C10K3/00; B; B01; B01D; B01D53/00; B01D53/02; B01J; B01J20/00; B01J20/02; B01J20/04; B01J20/041; B01J20/10; B01J20/28; B01J20/28014; B01J20/2803; B01J20/30; B01J20/3021; B01J20/3042; B01J2220/00; B01J2220/40; B01J2220/42
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) | 1949-03-04 | 1949-09-03 | 1950-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-04 | 1953-09-03 | 1954-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-04 | 1957-09-03 | 1958-03-05 | $7700.00 | Window Closed / Lapsed |