US2601907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary screen for motor assemblies
Assignee: Pioneer Gen E Motor Corp
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Filing: 1949-09-22
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Granted: 1952-07-01
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Expires: 1969-09-22
Abstract
No abstract record available.
Inventors
- 👤 Milford D Burrows
- 👤 Stanley Z Siwek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:56
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/12; F02; F02B; F02B63/00; F02B63/02
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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |