Patent US1429856A successfully refreshed from Google Patents.
US1429856A
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US
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Adsorption apparatus for solvent recovery, etc.
Assignee: General Electric Co
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Filing: 1921-01-07
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Granted: 1922-09-19
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Expires: 1941-01-07
Abstract
No abstract record available.
Inventors
- 👤 Rolland R Etter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:36
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0423; B01D53/0431; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2257/00; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2257/7027; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40088; B01D2259/4009; B01D53/0446
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) | 1925-09-18 | 1926-03-20 | 1926-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-09-18 | 1930-03-20 | 1930-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-09-18 | 1934-03-20 | 1934-09-19 | $7700.00 | Window Closed / Lapsed |