US2935028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps
Assignee: Bayer Corp
•
Filing: 1957-08-05
•
Granted: 1960-05-03
•
Expires: 1977-08-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Andres Ferrari
- 👤 Isreeli Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:37
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US271257A
Cited
US612834A
Cited
US1988337A
Cited
GB467288A
Cited
US2314281A
Cited
US2334148A
Cited
US2466618A
Cited
US2546852A
Cited
GB744414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |