US3589870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canister holder
Assignee: THOMAS F RANKIN
•
Filing: 1969-08-20
•
Granted: 1971-06-29
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Expires: 1989-08-20
Abstract
Abstract AN IMPROVED CANISTER SEAL AND SUPPORT DOR A RESIPRATORY GAS ABSORBER HAVING UPPER AND LOWER HOUSINGS, EACH HOUSING HAVEING A RESILENT SEAL AFFIXED TO ITS OUTER PERIPHERY.
Inventors
- 👤 Thomas F Rankin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:25
CPC Classifications
A; A62; A62B; A62B19/00; B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0415; B01D2257/00; B01D2257/50; B01D2257/504; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40084; B01D2259/45; B01D2259/4533; Y; Y02; Y02C; Y02C20/00; Y02C20/40
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |