US3273162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard hat with reinforcing ribs
Assignee: Welsh Manufacturing Co
•
Filing: 1964-12-03
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Granted: 1966-09-20
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Iii John R Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:27
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; A42B3/062; A42B3/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A MOLDED HARD HAT HAVING AN ARCUATE CROWN PORTION AND A OUTWARDLY FLARING GENERALLY HORIZONTAL MARGINAL LOWER EDGE, THE THICKNESS OF THE LOWER MARGINAL EDGE BEING GREATER THAN THE WALL OF THE CROWN PORTION, SAID WALL BEING OUTWARDLY DEFLECTED TO PROVIDE RIBS RADIATING FROM THE MID TOP PORTION DOWNWARDLY ALONG THE ARCUATE WALL AND EXTENDING INTO AND ACROSS SAID MARGINAL EDGE WHICH IS ALSO OUTWARDLY DEFLECTED AT THE LOCATION OF SAID RIBS, SAID THICKER LOWER EDGE EXTENDING FROM RIB TO RIB PROVIDING A SUPPORT AGAINST COMPRESSION OF ADJACENT RIBS.
Claim 2
Dependent Claim
89 words
A MOLDED HARD HAT HAVING AN ARCUATE CROWN PORTION AND A OUTWARDLY FLARING GENERALLY HORIZONTAL MARGINAL LOWER EDGE, THE THICKNESS OF THE LOWER MARGINAL EDGE BEING GREATER THAN THE WALL OF THE CROWN PORTION, SAID WALL BEING OUTWARDLY DEFLECTED TO PROVIDE RIBS RADIATING FROM THE MID TOP PORTION DOWNWARDLY ALONG THE ARCUATE WALL AND EXTENDING INTO AND ACROSS SAID MARGINAL EDGE WHICH IS ALSO OUTWARDLY DEFLECTED AT THE LOCATION OF SAID RIBS, SAID THICKER LOWER EDGE EXTENDING FROM RIB TO RIB PROVIDING A SUPPORT AGAINST COMPRESSION OF ADJACENT RIBS.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |