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Patent US2942773A successfully refreshed from Google Patents.
US2942773A
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Assignee: Paul Pollrich & Comp
•
Filing: 1955-03-01
•
Granted: 1960-06-28
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Expires: 1975-03-01
Abstract
No abstract record available.
Inventors
- 👤 Eck Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:38
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
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US823526A
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US1075120A
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GB291007A
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US1838169A
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US1823579A
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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 |