US2742978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant measuring valve for centralized lubricating system
Assignee: Stewart Warner Corp
•
Filing: 1950-08-17
•
Granted: 1956-04-24
•
Expires: 1970-08-17
Abstract
No abstract record available.
Inventors
- 👤 David C Peterson
- 👤 Joseph C Bystricky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:56
CPC Classifications
F; F16; F16N; F16N27/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US204747A
Cited
US991977A
Cited
US1439853A
Cited
US1562037A
Cited
FR36967E
Cited
US1915302A
Cited
US2219681A
Cited
US2298512A
Cited
US2214683A
Cited
CH239081A
Cited
CH247309A
Cited
CH238724A
Cited
US2358228A
Cited
US2408799A
Cited
US2498090A
Cited
FR923666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |