US3029167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnation method and carbonaceous articles impregnated with salts of organo phosphoric acid
Assignee: Borg Warner Corp
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Filing: 1959-07-16
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Granted: 1962-04-10
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Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Robert K Carlson
- 👤 Warren C Schwemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:07
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/50; C04B41/5076; C04B41/5092; C04B41/80; C04B41/81; C04B41/82; C04B41/85; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
34 words
A PROCESS FOR INHIBITING THE OXIDATION AND DECREASING THE COEFFICIENT OF FRICTION OF CARBON AND GRAPHITE BODIES COMPRISING THE STEP OF IMPREGNATING SAID CARBON AND GRAPHITE BODIES WITH A METAL SALT OF ORGANO PHOS-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |