US3204969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure dynamic seal
Assignee: Williams International Corp
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Filing: 1963-04-26
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Granted: 1965-09-07
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 Sam B Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:00
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16J15/363; F16J3/00; F16J3/04; F16J3/047; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN A HIGH PRESSURE DYNAMIC SEAL, A BASE, A SUBSHOE, AN EXPANDABLE SHEET METAL BELLOWS BETWEEN SAID BASE AND SAID SUBSHOE AND FORMING A COMMON CHAMBER THEREWITH, MEANS FOR PRESSURIZING SAID CHAMBER, A NONMETALLIC RUBBING SHOE ASSEMBLY COMPRISING A SHEET METAL BACKUP PLATE AND A RUBBING SHOE PERMANENTLY BONDED THERETO, SAID BACKUP PLATE AND RUBBING SHOE HAVING EDGES IN
Claim 2
Dependent Claim
59 words
IN A HIGH PRESSURE DYNAMIC SEAL, A BASE, A SUBSHOE, AN EXPANDABLE SHEET METAL BELLOWS BETWEEN SAID BASE AND SAID SUBSHOE AND FORMING A COMMON CHAMBER THEREWITH, MEANS FOR PRESSURIZING SAID CHAMBER, A NONMETALLIC RUBBING SHOE ASSEMBLY COMPRISING A SHEET METAL BACKUP PLATE AND A RUBBING SHOE PERMANENTLY BONDED THERETO, SAID BACKUP PLATE AND RUBBING SHOE HAVING EDGES IN
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |