US3197784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmented helmet
Assignee: Carlisle Research and Development Corp
•
Filing: 1962-09-04
•
Granted: 1965-08-03
•
Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Carlisle Richard Sheldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:16
CPC Classifications
A; A42; A42B; A42B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A HELMET COMPRISING A LARGE NUMBER OF RADIALLY EXTENDING, OUTWARDLY EXPANDING ELONGATED MEMBERS EACH HAVING LONGITUDINAL SIDES, OUTER ENDS, AND INNER AND OUTER LAYERS; THE INNER ENDS OF WHICH ARE JOINED INTEGRALLY BY A WEB; THE LONGITUDINAL SIDES BEING CONCAVE RELATIVE TO EACH OTHER; THE INNER LAYER BEING CUSHIONED AND THE OUTER LAYER BEING RESILIENT; A STRAP PASSED LATERALLY THROUGH EACH ELONGATED MEMBER AND ADJUSTABLE IN LENGTH WHEREBY TO RETAIN THE MEMBERS IN A DOMED SHAPE OF A SIZE ADAPTED TO BE ADJUSTED TO A GIVEN HEAD; WHEREBY TO CONSTITUTE AN ADJUSTABLE PROTECTIVE HEAD COVERING HAVING MINUTE CRACKS BETWEEN THE ELONGATED MEMBERS FOR VENTILATION.
Claim 2
Dependent Claim
104 words
A HELMET COMPRISING A LARGE NUMBER OF RADIALLY EXTENDING, OUTWARDLY EXPANDING ELONGATED MEMBERS EACH HAVING LONGITUDINAL SIDES, OUTER ENDS, AND INNER AND OUTER LAYERS; THE INNER ENDS OF WHICH ARE JOINED INTEGRALLY BY A WEB; THE LONGITUDINAL SIDES BEING CONCAVE RELATIVE TO EACH OTHER; THE INNER LAYER BEING CUSHIONED AND THE OUTER LAYER BEING RESILIENT; A STRAP PASSED LATERALLY THROUGH EACH ELONGATED MEMBER AND ADJUSTABLE IN LENGTH WHEREBY TO RETAIN THE MEMBERS IN A DOMED SHAPE OF A SIZE ADAPTED TO BE ADJUSTED TO A GIVEN HEAD; WHEREBY TO CONSTITUTE AN ADJUSTABLE PROTECTIVE HEAD COVERING HAVING MINUTE CRACKS BETWEEN THE ELONGATED MEMBERS FOR VENTILATION.
References Cited (Backward Citations)
US1602727A
Cited
US1853114A
Cited
GB350142A
Cited
US1868926A
Cited
FR894838A
Cited
US3068487A
Cited
US3087166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |