Patent US4766616A successfully refreshed from Google Patents.
US4766616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking safety helmet
Assignee: Individual
•
Filing: 1987-04-01
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Granted: 1988-08-30
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Expires: 2007-04-01
Abstract
Abstract A locking safety helmet including a helmet; a retractable shackle; locking means for locking the shackle to the helmet in the locking position; and storage means included with the helmet for storing the shackle out of the way in the retracted position for conventional wearing of the helmet.
Inventors
- 👤 John P. Donahue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:38
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/0406; A42B3/0413; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5013
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
69 words
A locking safety helmet comprising: a helmet; a curved shackle having a retracted position on the helmet; locking means for locking said shackle to said helmet in a locking position; and storage means including a compartment in said helmet curved similarly to said shackle for storing said shackle in the retracted position, said shackle, in its retracted position, not interfering with the wearer's head when the helmet is worn.
Claim 2
Dependent Claim
69 words
A locking safety helmet comprising: a helmet; a curved shackle having a retracted position on the helmet; locking means for locking said shackle to said helmet in a locking position; and storage means including a compartment in said helmet curved similarly to said shackle for storing said shackle in the retracted position, said shackle, in its retracted position, not interfering with the wearer's head when the helmet is worn.
Claim 3
Dependent Claim
30 words
The safety helmet of claim 1 in which said locking means includes two lock mechanisms, one for securing each end of the shackle to the helmet in the locking position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |