Patent US3299523A successfully refreshed from Google Patents.
US3299523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Levels
Assignee: Individual
•
Filing: 1964-06-05
•
Granted: 1967-01-24
•
Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Lawrence N Lea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:41
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2338811A
Cited
US2553668A
Cited
CH325143A
Cited
FR72020E
Cited
US3106024A
Cited
US3172212A
Cited
US3225451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |