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Patent US3487470A successfully refreshed from Google Patents.
US3487470A
Expired / Lapsed
US
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Side track dual visor helmet
Assignee: TEXACE Corp A CORP OF TEX
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Filing: 1967-03-09
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Granted: 1970-01-06
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Expires: 1987-03-09
Abstract
No abstract record available.
Inventors
- 👤 James Arthur Stapenhill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:07
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/226; A42B3/228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1416848A
Cited
US1683170A
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US2445355A
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US2813271A
Cited
US3162862A
Cited
US3315272A
Cited
US3368220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |