US2566448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifriction bearing assembly sealing means
Assignee: Jack & Heintz Prec Ind Inc
•
Filing: 1945-02-24
•
Granted: 1951-09-04
•
Expires: 1965-02-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Heintz
- 👤 Walter T Buhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:28
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7836; F16C33/784; F16C33/7843; F16C33/7846; F16C33/785; F16C19/00; F16C19/02; F16C19/04; F16C19/06; Y; Y10; Y10S; Y10S277/00; Y10S277/924; Y10S277/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1103912A
Cited
US719101A
Cited
US1989980A
Cited
US1901580A
Cited
US2040489A
Cited
US2240624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |