US2955217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer element
Assignee: Harris Transducer Corp
•
Filing: 1957-03-06
•
Granted: 1960-10-04
•
Expires: 1977-03-06
Abstract
No abstract record available.
Inventors
- 👤 Wilbur T Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:55
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1345786A
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US1654306A
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US2116522A
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US2391678A
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US2579978A
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US2550771A
Cited
US2530224A
Cited
US2701013A
Cited
US2690802A
Cited
US2818514A
Cited
US2830267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |