US3490153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inclinometer
Assignee: JOHN L HARRIS
•
Filing: 1967-02-27
•
Granted: 1970-01-20
•
Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 John L Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:29
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/16; G01C9/02; G01C9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE260623C
Cited
US1310444A
Cited
US2120771A
Cited
US2171156A
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US2181444A
Cited
US2533686A
Cited
US2823464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |