US2946293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductors
Assignee: Pyrene Co Ltd
•
Filing: 1955-04-18
•
Granted: 1960-07-26
•
Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Henshaw Thomas Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:06
CPC Classifications
A; A62; A62C; A62C31/00; A62C31/005; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/312; B01F25/311; B01F25/3111; B01F25/3124; B01F25/31242; F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/461
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE37721C
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US73757A
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US198891A
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US304227A
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US535360A
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US778122A
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US747006A
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US1546712A
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US1596523A
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US1671851A
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US2127186A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |