Patent US3274612A successfully refreshed from Google Patents.
US3274612A
Expired / Lapsed
US
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Helmet for water sports
Assignee: Individual
•
Filing: 1965-05-18
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Granted: 1966-09-27
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Expires: 1985-05-18
Abstract
No abstract record available.
Inventors
- 👤 Robert C Merriam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:30
CPC Classifications
A; A42; A42B; A42B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A SAFETY HELMET FOR USE IN WATER SPORTS COMPRISING: A PROTECTIVE HEAD-SHAPED SHELL; A FLEXIBLE LINER ATTACHED TO THE INNER SURFACE OF SAID SHELL, SAID FLEXIBLE LINER AND SAID SHELL EACH BEING PROVIDED WITH A PLURALITY OF ALIGNED OPENINGS THERETHROUGH; AND A NETWORK OF DRAIN CHANNELS EXTENDING FROM SAID ALIGNED OPENINGS ALONG THE INSIDE SURFACE OF SAID FLEXIBLE LINER TO THE EDGE OF SAID SAFETY HELMET THEREBY PERMITTING THE ESCAPE OF WATER ENTRAPPED INSIDE SAID HELMET.
Claim 2
Dependent Claim
76 words
A SAFETY HELMET FOR USE IN WATER SPORTS COMPRISING: A PROTECTIVE HEAD-SHAPED SHELL; A FLEXIBLE LINER ATTACHED TO THE INNER SURFACE OF SAID SHELL, SAID FLEXIBLE LINER AND SAID SHELL EACH BEING PROVIDED WITH A PLURALITY OF ALIGNED OPENINGS THERETHROUGH; AND A NETWORK OF DRAIN CHANNELS EXTENDING FROM SAID ALIGNED OPENINGS ALONG THE INSIDE SURFACE OF SAID FLEXIBLE LINER TO THE EDGE OF SAID SAFETY HELMET THEREBY PERMITTING THE ESCAPE OF WATER ENTRAPPED INSIDE SAID HELMET.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |