US3523451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure gauge
Assignee: Individual
•
Filing: 1967-09-05
•
Granted: 1970-08-11
•
Expires: 1987-09-05
Abstract
No abstract record available.
Inventors
- 👤 Theodore Kohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:51
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0491; B60C23/0496; B60C23/0408; B60C23/0422; B60C23/0433
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2246741A
Cited
US2618290A
Cited
US2727221A
Cited
US3230968A
Cited
US3224264A
Cited
US3208264A
Cited
US3177724A
Cited
US3370336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |