US3038375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle float
Assignee: OPTIC GLASS FLOAT CO
•
Filing: 1958-07-21
•
Granted: 1962-06-12
•
Expires: 1978-07-21
Abstract
No abstract record available.
Inventors
- 👤 Harry H Gansz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:01
CPC Classifications
G; G02; G02C; G02C5/00; G02C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1999702A
Cited
US2561402A
Cited
GB647864A
Cited
US2626538A
Cited
DE829813C
Cited
US2693605A
Cited
US2731759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |