US2980914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined headgear and eyeshield
Assignee: Bill Jack Scientific Instrument Co
•
Filing: 1959-06-03
•
Granted: 1961-04-25
•
Expires: 1979-06-03
Abstract
No abstract record available.
Inventors
- 👤 Heisig Henry Philip
- 👤 Everett R Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:46
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1671342A
Cited
US2030639A
Cited
US2270238A
Cited
US2445203A
Cited
US2468683A
Cited
US2585849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |