US3144409A
Expired / Lapsed
US
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Assignee: Ametek Inc
•
Filing: 1960-10-04
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Granted: 1964-08-11
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Expires: 1980-10-04
Abstract
No abstract record available.
Inventors
- 👤 Leo A Jauhola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:29
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/044; B01D33/048; B01D33/06; B01D33/073; B01D33/44; B01D33/46; B01D33/463
Claims Analysis
Total Claims: 0
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |