US2829063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing cement for spark plug
Assignee: Motors Liquidation Co
•
Filing: 1955-10-06
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Granted: 1958-04-01
•
Expires: 1975-10-06
Abstract
No abstract record available.
Inventors
- 👤 Schwartzwalder Karl
- 👤 Arthur V Somers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:42
CPC Classifications
C; C09; C09J; C09J1/00; H; H01; H01T; H01T13/00; H01T13/20; H01T13/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A CEMENT FOR SPARK PLUGS AND THE LIKE CONSISTING ESSETIALLY OF THE REACTION PRODUCT RESULTING FROM MIXING FROM 50 TO 90 PARTS BY WEIGHT IN PLACE THEREOF ALUMINATE WITH ABOUT 20 TO 60 PARTS BY WEIGHT OF AN AQUEOUS SOLUTION OF PHOSPHORIC ACID, SAID SOLUTION HAVING A CONCENTRATION OF FROM 25% TO 75% BY WEIGHT PHOSPHORIC ACID.
Claim 2
Dependent Claim
57 words
A CEMENT FOR SPARK PLUGS AND THE LIKE CONSISTING ESSETIALLY OF THE REACTION PRODUCT RESULTING FROM MIXING FROM 50 TO 90 PARTS BY WEIGHT IN PLACE THEREOF ALUMINATE WITH ABOUT 20 TO 60 PARTS BY WEIGHT OF AN AQUEOUS SOLUTION OF PHOSPHORIC ACID, SAID SOLUTION HAVING A CONCENTRATION OF FROM 25% TO 75% BY WEIGHT PHOSPHORIC ACID.
References Cited (Backward Citations)
US1556115A
Cited
US1908636A
Cited
US2339163A
Cited
US2437209A
Cited
US2717438A
Cited
US2574843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |