US3344074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber treatment
Assignee: Individual
•
Filing: 1964-05-27
•
Granted: 1967-09-26
•
Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Lee A Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:57
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD OF STOPPING LEAKS IN A CLOSED HYDRAULIC FLUID CONTAINING SYSTEM HAVING A RUBBER SEAL THEREIN BY CAUSING SAID RUBBER SEAL TO EXPAND, SAID METHOD COMPRISING ADDING TRICHLOROETHYLENE TO SAID FLUID IN SAID SYSTEM IN AN AMOUNT OF ABOUT 0.5 TO 20% BY WEIGHT, BASED ON THE WEIGHT OF SAID FLUID, WHEREBY SAID RUBBER SEAL IS CONTACTED BY SAID TRICHLOROETHYLENE.
Claim 2
Independent Claim
61 words
A METHOD OF STOPPING LEAKS IN A CLOSED HYDRAULIC FLUID CONTAINING SYSTEM HAVING A RUBBER SEAL THEREIN BY CAUSING SAID RUBBER SEAL TO EXPAND, SAID METHOD COMPRISING ADDING TRICHLOROETHYLENE TO SAID FLUID IN SAID SYSTEM IN AN AMOUNT OF ABOUT 0.5 TO 20% BY WEIGHT, BASED ON THE WEIGHT OF SAID FLUID, WHEREBY SAID RUBBER SEAL IS CONTACTED BY SAID TRICHLOROETHYLENE.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |