US3327318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welder's mask
Assignee: American Optical Corp
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Filing: 1965-09-30
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Granted: 1967-06-27
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Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Stickney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:45
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/04; A61F9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A WELDER''S MASK COMPRISING A FACEPIECE HAVING A FRONT SECTION AND OPPOSITELY DISPOSED REARWARDLY EXTENDING SIDES, A HEAD HARNESS, MEANS MOUNTING SAID FACEPIECE UPON SAID HEAD HARNESS FOR POSITIONING SAID FACEPIECE BEFORE THE FACE AND SIDES OF A HEAD WHEN SAID MASK IS WORN, SAID SIDES OF SAID FACEPIECE EACH HAVING A RECESS EXTENDING FORWARDLY A SUBSTANTIAL DISTANCE FROM RESPECTIVE REARWARD EDGES THEREOF, A PAIR OF COVERINGS, OF SOFT, FLEXIBLE OPAQUE MATERIAL, MEANS SECURING ONE OF SAID COVERING TO ONE SIDE AND THE OTHER OF SAID COVERINGS TO THE OTHER SIDE OF SAID FACEPIECE IN EXTENDED RELATIONSHIP OVER SAID RECESS
Claim 2
Dependent Claim
100 words
A WELDER''S MASK COMPRISING A FACEPIECE HAVING A FRONT SECTION AND OPPOSITELY DISPOSED REARWARDLY EXTENDING SIDES, A HEAD HARNESS, MEANS MOUNTING SAID FACEPIECE UPON SAID HEAD HARNESS FOR POSITIONING SAID FACEPIECE BEFORE THE FACE AND SIDES OF A HEAD WHEN SAID MASK IS WORN, SAID SIDES OF SAID FACEPIECE EACH HAVING A RECESS EXTENDING FORWARDLY A SUBSTANTIAL DISTANCE FROM RESPECTIVE REARWARD EDGES THEREOF, A PAIR OF COVERINGS, OF SOFT, FLEXIBLE OPAQUE MATERIAL, MEANS SECURING ONE OF SAID COVERING TO ONE SIDE AND THE OTHER OF SAID COVERINGS TO THE OTHER SIDE OF SAID FACEPIECE IN EXTENDED RELATIONSHIP OVER SAID RECESS
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |