US2942773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fans
Assignee: Paul Pollrich & Comp
•
Filing: 1955-03-01
•
Granted: 1960-06-28
•
Expires: 1975-03-01
Abstract
No abstract record available.
Inventors
- 👤 Eck Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:57
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/02; F04D17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US507445A
Cited
FR373998A
Cited
US823526A
Cited
US1075120A
Cited
GB291007A
Cited
US1838169A
Cited
US1823579A
Cited
US1886513A
Cited
US1920952A
Cited
US2217211A
Cited
US2658700A
Cited
DE807978C
Cited
US2669188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |