Patent US2750593A successfully refreshed from Google Patents.
US2750593A
Expired / Lapsed
US
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Welding helmet face shield
Assignee: Fibre Metal Products LLC
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Filing: 1954-03-10
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Granted: 1956-06-19
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Expires: 1974-03-10
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:10
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/04; A61F9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A WELDING HELMET MADE OF FIBERGLAS BONDED IN POLYESTER RESIN, A FACE PROTION FORMED WITH A WINDOW OPENING AND HAVING INNER AND OUTER SURFACES, THE OUTER SURFACE BEING EXPOSED TO THE WELDING OPERATION BEING PERFORMED BY THE WEARER OF THE HELMET, AND A FINE WIRE METAL SCREEN EMBEDDED IN SAID FACE PORTION SUBSTANTIALLY THROUGHOUT THE EXTENT THEREOF AT SAID OUTER SURFACE, WITH PORTIONS OF SAID WIRE SCREEN BEING EXPOSED WHEREBY SAID SCREEN PORTIONS ARE ADAPTED TO BE ENGAGED BY SPARKS FROM THE WELDING OPERATION AND DISSIPATE THE HEAT FROM SAID SPARKS THROUGHOUT THE SCREEN.
Claim 2
Dependent Claim
95 words
IN A WELDING HELMET MADE OF FIBERGLAS BONDED IN POLYESTER RESIN, A FACE PROTION FORMED WITH A WINDOW OPENING AND HAVING INNER AND OUTER SURFACES, THE OUTER SURFACE BEING EXPOSED TO THE WELDING OPERATION BEING PERFORMED BY THE WEARER OF THE HELMET, AND A FINE WIRE METAL SCREEN EMBEDDED IN SAID FACE PORTION SUBSTANTIALLY THROUGHOUT THE EXTENT THEREOF AT SAID OUTER SURFACE, WITH PORTIONS OF SAID WIRE SCREEN BEING EXPOSED WHEREBY SAID SCREEN PORTIONS ARE ADAPTED TO BE ENGAGED BY SPARKS FROM THE WELDING OPERATION AND DISSIPATE THE HEAT FROM SAID SPARKS THROUGHOUT THE SCREEN.
References Cited (Backward Citations)
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Cited
US1910127A
Cited
US2312227A
Cited
US2362610A
Cited
US2631287A
Cited
US2655656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |