US3073689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing mating sealing surfaces
Assignee: Caterpillar Inc
•
Filing: 1960-08-12
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Granted: 1963-01-15
•
Expires: 1980-08-12
Abstract
No abstract record available.
Inventors
- 👤 Bernard F Kupfert
- 👤 Ralph W Yocum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:19
CPC Classifications
B; B24; B24B; B24B19/00; B24B7/00; B24B7/10; B24B7/16; F; F16; F16C; F16C33/00; F16C33/72; F16C33/74; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
THE METHOD OF FORMING AN INTERNAL FRUSTO-CONICAL SEAL BAND ON THE OUTER MARGIN OF AN ANNULAR SEAL RING WHICH COMPRISES LAPPING THE RING AGAINST A CONCAVE LAP SURFACE WHILE APPLYING PRESSURE TO THE RING WHICH DISTORTS THE
Claim 2
Independent Claim
37 words
THE METHOD OF FORMING AN INTERNAL FRUSTO-CONICAL SEAL BAND ON THE OUTER MARGIN OF AN ANNULAR SEAL RING WHICH COMPRISES LAPPING THE RING AGAINST A CONCAVE LAP SURFACE WHILE APPLYING PRESSURE TO THE RING WHICH DISTORTS THE
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |