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US3555561A
Expired / Lapsed
US
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Protective helmet
Assignee: Individual
•
Filing: 1969-04-25
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Granted: 1971-01-19
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Expires: 1989-04-25
Abstract
Abstract A PROTECTIVE HELMET TO PREVENT HEAD INJURIES EMPLOYS A SERIES OF BANDS AND STRAPS AND IS ARRANGED TO ENCASE THE HEAD OF THE WEARER PROVIDING PROTECTION AT THOSE AREAS MOST LIKELY TO RECEIVE SERIOUS INJURY. THE HELMET EMBODIES TUBULAR OR OTHER RESILIENT BANDS AND STRAPS.
Inventors
- 👤 Harry B Neis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:19
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/32; A42B3/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |