Patent US3306011A successfully refreshed from Google Patents.
US3306011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air filter for inflatable tires
Assignee: Individual
•
Filing: 1964-05-28
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Granted: 1967-02-28
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Expires: 1984-05-28
Abstract
No abstract record available.
Inventors
- 👤 Dvorkin Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:43
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; B01D53/261; B01D53/02; B01D53/04; B01D53/0407; B23; B23H; B23H11/00; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2257/00; B01D2257/10; B01D2257/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A DEVICE FOR PURIFYING AIR SUPPLIED TO THE VALVE STEM OF A TIRE CONSISTING OF A HOUSING, A MOISTURE ABSORBENT IN SAID HOUSING, AN AIR PRESSURE GAUGE AFFIXED TO SAID HOUSING AND HAVING A PORT IN COMMUNICATION WITH THE INTERIOR OF SAID HOUSING, A FITTING AT ONE END OF SAID HOUSING ADAPTED TO BE FITTED TO SAID VALVE STEM, A SECOND FITTING CONTAINING A VALVE MEANS AT THE OPPOSITE END OF SAID HOUSING, SAID
Claim 2
Independent Claim
74 words
A DEVICE FOR PURIFYING AIR SUPPLIED TO THE VALVE STEM OF A TIRE CONSISTING OF A HOUSING, A MOISTURE ABSORBENT IN SAID HOUSING, AN AIR PRESSURE GAUGE AFFIXED TO SAID HOUSING AND HAVING A PORT IN COMMUNICATION WITH THE INTERIOR OF SAID HOUSING, A FITTING AT ONE END OF SAID HOUSING ADAPTED TO BE FITTED TO SAID VALVE STEM, A SECOND FITTING CONTAINING A VALVE MEANS AT THE OPPOSITE END OF SAID HOUSING, SAID
References Cited (Backward Citations)
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |