Patent US3385672A successfully refreshed from Google Patents.
US3385672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen generator
Assignee: MSA Safety Inc
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Filing: 1965-04-22
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Granted: 1968-05-28
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Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Miles J Mcgoff
- 👤 John W Mausteller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:26
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/02; C01B13/0296; B; B01; B01J; B01J7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN OXYGEN GENERATOR COMPRISING A HOLLOW CONTAINER HAVING AN OPEN TOP AND AN OXYGEN OUTLET, A PLURALITY OF STIFF WIRES IN THE CONTAINER HAVING VERTICAL PORTIONS SPACED LATERALLY FROM ONE ANOTHER AND FROM THE SIDE WALL OF THE CONTAINER TO FORM A REMOVABLE RECEPTACLE FOR AN OXYGEN CANDLE, A CANDLE SUPPORT IN SAID RECEPTACLE SUPPORTED BY THE WIRES, THE UPPER END PORTIONS OF THE WIRES BEING BENT OUTWARDLY TO SPACE SAID VERTICAL PORTIONS FROM SAID SIDE WALL, A COVER DETACHABLY MOUNTED ON TOP OF THE CONTAINER, A CANDLE-IGNITER SUPPORTED BY THE COVER AND OPERABLE FROM ABOVE IT, AND OXYGEN-FILTERING MEANS DISPOSED INSIDE THE CONTAINER BETWEEN SAID RECEPTACLE AND OUTLET.
Claim 2
Dependent Claim
109 words
AN OXYGEN GENERATOR COMPRISING A HOLLOW CONTAINER HAVING AN OPEN TOP AND AN OXYGEN OUTLET, A PLURALITY OF STIFF WIRES IN THE CONTAINER HAVING VERTICAL PORTIONS SPACED LATERALLY FROM ONE ANOTHER AND FROM THE SIDE WALL OF THE CONTAINER TO FORM A REMOVABLE RECEPTACLE FOR AN OXYGEN CANDLE, A CANDLE SUPPORT IN SAID RECEPTACLE SUPPORTED BY THE WIRES, THE UPPER END PORTIONS OF THE WIRES BEING BENT OUTWARDLY TO SPACE SAID VERTICAL PORTIONS FROM SAID SIDE WALL, A COVER DETACHABLY MOUNTED ON TOP OF THE CONTAINER, A CANDLE-IGNITER SUPPORTED BY THE COVER AND OPERABLE FROM ABOVE IT, AND OXYGEN-FILTERING MEANS DISPOSED INSIDE THE CONTAINER BETWEEN SAID RECEPTACLE AND OUTLET.
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |