US2990089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body support for binocular units
Assignee: Individual
•
Filing: 1957-09-30
•
Granted: 1961-06-27
•
Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Harold M Nystrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:23
CPC Classifications
A; A45; A45F; A45F5/00; G; G02; G02B; G02B23/00; G02B23/16; G02B23/18; Y; Y10; Y10S; Y10S224/00; Y10S224/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US702292A
Cited
US1018771A
Cited
US1198423A
Cited
US1347540A
Cited
GB294854A
Cited
US2334036A
Cited
US2636822A
Cited
DE901941C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |