US3089145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sun hat
Assignee: Individual
•
Filing: 1961-03-31
•
Granted: 1963-05-14
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
- 👤 Howard H Kiefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:05
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/02; A; A42; A42C; A42C5/00; A42C5/04; G02C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |