Patent US2547080A successfully refreshed from Google Patents.
Patent US3332087A successfully refreshed from Google Patents.
US3332087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable window for a welder's helmet
Assignee: Individual
•
Filing: 1965-08-26
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Granted: 1967-07-25
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Curtis T Manz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:49
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/04; A61F9/06; A61F9/061; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0894
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A WELDER''S HELMET HAVING A SIGHT OPENING THEREIN THROUGH WICH THE USER MAY SEE, SPACED TRACKS, MEANS DETACHABLY MOUNTING SAID SPACED TRACKS IN SAID HELMET SO THAT THE SPACED TRACKS STRADDLE SAID OPENING, A SPRING FINGER POSITIONED WITHIN ONE OF THE TRACKS, MEANS SECURING ONE END OF ONE OF THE SPRING FINGERS TO THE TRACKS, A GLASS SHUTTER SLIDABLY MOUNTED IN THE TRACKS, SAID SPRING FINGERS YIELDABLY ENGAGING THE GLASS SHUTTER, RESILIENT STOP BLOCKS PROVIDED AT THE UPPER END OF SAID TRACKS, AND RESILIENT STOP BLOCKS AT THE LOWER END OF SAID TRACKS.
Claim 2
Dependent Claim
94 words
IN A WELDER''S HELMET HAVING A SIGHT OPENING THEREIN THROUGH WICH THE USER MAY SEE, SPACED TRACKS, MEANS DETACHABLY MOUNTING SAID SPACED TRACKS IN SAID HELMET SO THAT THE SPACED TRACKS STRADDLE SAID OPENING, A SPRING FINGER POSITIONED WITHIN ONE OF THE TRACKS, MEANS SECURING ONE END OF ONE OF THE SPRING FINGERS TO THE TRACKS, A GLASS SHUTTER SLIDABLY MOUNTED IN THE TRACKS, SAID SPRING FINGERS YIELDABLY ENGAGING THE GLASS SHUTTER, RESILIENT STOP BLOCKS PROVIDED AT THE UPPER END OF SAID TRACKS, AND RESILIENT STOP BLOCKS AT THE LOWER END OF SAID TRACKS.
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |