US2991689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kaleidoscopes
Assignee: Individual
•
Filing: 1957-10-09
•
Granted: 1961-07-11
•
Expires: 1977-10-09
Abstract
No abstract record available.
Inventors
- 👤 Beverly W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:07
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US862438A
Cited
US1383019A
Cited
GB399521A
Cited
US2465083A
Cited
US2423371A
Cited
US2464055A
Cited
US2447623A
Cited
US2484116A
Cited
US2504255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |