US3405507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volume compensation in vapor sorption systems
Assignee: ConocoPhillips Co
•
Filing: 1967-02-23
•
Granted: 1968-10-15
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Expires: 1987-02-23
Abstract
No abstract record available.
Inventors
- 👤 John R Spencer
- 👤 James H Cheek
- 👤 Walton D Greathouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:13
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D2256/00; B01D2256/24; B01D2257/00; B01D2257/70; B01D2257/702; B01D2257/80; B01D2258/00; B01D2258/06; B01D2259/00; B01D2259/40; B01D2259/40003; B01D2259/40083; B01D2259/40088; B01D2259/4009; B01D2259/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3186144A
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US3137549A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |