US2875967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base structure for centrifugal machines
Assignee: Individual
•
Filing: 1954-05-20
•
Granted: 1959-03-03
•
Expires: 1974-05-20
Abstract
No abstract record available.
Inventors
- 👤 Robert D Dodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:16
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/373; F16F1/3732; A; A47; A47J; A47J19/00; A47J19/02; A47J19/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2136787A
Cited
GB398657A
Cited
US1945765A
Cited
US2802356A
Cited
US2546394A
Cited
US2641426A
Cited
US2641425A
Cited
DE860630C
Cited
US2730356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |