Patent US3098388A successfully refreshed from Google Patents.
US3098388A
Expired / Lapsed
US
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Barometric pressure transducer
Assignee: General Precision Inc
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Filing: 1960-04-21
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Granted: 1963-07-23
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Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 Norman J Appleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:46
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; G01L9/0008; G01L9/0013; Y; Y10; Y10S; Y10S73/00; Y10S73/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
IN AN ALTIMETER AND CASING FOR A DESIRED ALTITUDE RANGE, IN COMBINATION, A LEVER OF THE FIRST CLASS; A PAIR OF STRINGS DESIGNED TO VIBRATE CONNECTED TO OPPOSITE ENDS OF SAID LEVER AND CASING, SAID STRINGS BEING OF A LENGTH L IN INCHES WHERE
Claim 2
Dependent Claim
44 words
IN AN ALTIMETER AND CASING FOR A DESIRED ALTITUDE RANGE, IN COMBINATION, A LEVER OF THE FIRST CLASS; A PAIR OF STRINGS DESIGNED TO VIBRATE CONNECTED TO OPPOSITE ENDS OF SAID LEVER AND CASING, SAID STRINGS BEING OF A LENGTH L IN INCHES WHERE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |