US2867330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Eimco Corp
•
Filing: 1955-09-22
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Granted: 1959-01-06
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Expires: 1975-09-22
Abstract
No abstract record available.
Inventors
- 👤 Berne A Schepman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:15
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/01; B01D33/03; B01D33/0307; B01D33/0315; B01D33/04; B01D33/44; B01D33/46; B01D33/463; B01D33/466; Y; Y10; Y10S; Y10S210/00; Y10S210/03
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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |