US3534529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering organic vapors from airstream
Assignee: Day and Zimmermann Inc
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Filing: 1969-10-27
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Granted: 1970-10-20
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Expires: 1989-10-27
Abstract
No abstract record available.
Inventors
- 👤 Manlio M Mattia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:02
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0462; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2257/00; B01D2257/70; B01D2257/708; B01D2258/00; B01D2258/06; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40088; B01D2259/4009; B01D2259/401; B01D2259/402
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |