Patent US2447083A successfully refreshed from Google Patents.
US2447083A
Expired / Lapsed
US
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Covering shield mount for safety helmets
Assignee: A F PARMALEE DOING BUSINESS AS
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Filing: 1945-05-07
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Granted: 1948-08-17
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Expires: 1965-05-07
Abstract
No abstract record available.
Inventors
- 👤 William C Moeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:11
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/225; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32951; Y10T403/32959
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US248781A
Cited
US525039A
Cited
US1416848A
Cited
US1841054A
Cited
US2167969A
Cited
US2153714A
Cited
US2194492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |