Patent US3362403A successfully refreshed from Google Patents.
US3362403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unified helmet and oxygen breathing assembly
Assignee: Sabre Industries Inc
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Filing: 1963-12-11
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Granted: 1968-01-09
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Expires: 1983-12-11
Abstract
No abstract record available.
Inventors
- 👤 John R Fleming
- 👤 Edward D Nez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:38
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/28; A42B3/288; A42B3/10; A42B3/12; A42B3/32; A62; A62B; A62B18/00; A62B18/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROTECTIVE HELMET COMPRISING AN OUTER SHELL OF AT LEAST TWO PIECES, GENERALLY SHAPED TO FIT THE HUMAN HEAD, SAID SHELL PIECES BEING HINGED TOGETHER SO THAT SAID PIECES MAY BE OPENED FOR ENTRY OF THE WEARER''S HEAD, ONE OF SAID SHELL PIECES INCLUDING A FACE OPENING, A TRANSPARENT VISOR THEREOVER AND A FLEXIBLE FACE SEAL FORMING AN ORAL-NASAL CAVITY THEREBETWEEN, MEANS FOR SUPPLYING OXYGEN TO SAID ORAL-NASAL CAVITY. AN EXHALATION VALVE IN COMMUNICATION WITH SAID ORALNASAL CAVITY, SAID HELMET INCLUDING A MOVABLE MEANS FOR MOVING THE WEARER''S HEAD FORWARD IN THE HELMET INTO ENGAGEMENT WITH THE FACE SEAL, SAID FLEXIBLE FACE SEAL BEING PRESSED POSITION TO MAKE SEALING CONTACT WITH THE WEARER''S FACE THEREBY MAXIMIZING HIS VISUAL FIELD, IMPROVING THE FACE SEAL AND ASSISTING IN PREVENTING AN INCREASED IN CO2 CONCENTRATION IN SAID ORAL-NASALL CAVITY.
Claim 2
Dependent Claim
136 words
A PROTECTIVE HELMET COMPRISING AN OUTER SHELL OF AT LEAST TWO PIECES, GENERALLY SHAPED TO FIT THE HUMAN HEAD, SAID SHELL PIECES BEING HINGED TOGETHER SO THAT SAID PIECES MAY BE OPENED FOR ENTRY OF THE WEARER''S HEAD, ONE OF SAID SHELL PIECES INCLUDING A FACE OPENING, A TRANSPARENT VISOR THEREOVER AND A FLEXIBLE FACE SEAL FORMING AN ORAL-NASAL CAVITY THEREBETWEEN, MEANS FOR SUPPLYING OXYGEN TO SAID ORAL-NASAL CAVITY. AN EXHALATION VALVE IN COMMUNICATION WITH SAID ORALNASAL CAVITY, SAID HELMET INCLUDING A MOVABLE MEANS FOR MOVING THE WEARER''S HEAD FORWARD IN THE HELMET INTO ENGAGEMENT WITH THE FACE SEAL, SAID FLEXIBLE FACE SEAL BEING PRESSED POSITION TO MAKE SEALING CONTACT WITH THE WEARER''S FACE THEREBY MAXIMIZING HIS VISUAL FIELD, IMPROVING THE FACE SEAL AND ASSISTING IN PREVENTING AN INCREASED IN CO2 CONCENTRATION IN SAID ORAL-NASALL CAVITY.
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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |