US3530720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic gauge movement
Assignee: Ametek Inc
•
Filing: 1968-11-06
•
Granted: 1970-09-29
•
Expires: 1988-11-06
Abstract
No abstract record available.
Inventors
- 👤 Philip W Harland
- 👤 Ralph D Waite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:33
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2294869A
Cited
US2312716A
Cited
GB374218A
Cited
US2227514A
Cited
US2344882A
Cited
US2406098A
Cited
US3293917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |