Patent US2460316A successfully refreshed from Google Patents.
US2881750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Motors Liquidation Co
•
Filing: 1956-03-29
•
Granted: 1959-04-14
•
Expires: 1976-03-29
Abstract
No abstract record available.
Inventors
- 👤 Dean K Hanink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:44
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/02; F01L3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A VALVE HAVING A SURFACE PORTION COATED WITH A THIN LAYER OF ALUMINUM, SAID ALUMINUM BEING BONDED TO THE BASE MATERIAL OF THE VALVE WITH AN ALLOY OR ALUMINUM WITH SAID BASE MATERIAL HAVING A THICKNESS BETWEEN 0.00005" AND 0.0015"
Claim 2
Dependent Claim
40 words
A VALVE HAVING A SURFACE PORTION COATED WITH A THIN LAYER OF ALUMINUM, SAID ALUMINUM BEING BONDED TO THE BASE MATERIAL OF THE VALVE WITH AN ALLOY OR ALUMINUM WITH SAID BASE MATERIAL HAVING A THICKNESS BETWEEN 0.00005" AND 0.0015"
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |