US3336659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making shielded gaskets
Assignee: Pfaudler Inc
•
Filing: 1965-03-01
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Granted: 1967-08-22
•
Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Basil G Staples
- 👤 Herbert F Spies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:37
CPC Classifications
B; B21; B21D; B21D49/00; B21D53/00; F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/122; F16J15/123; F16J15/128; Y; Y10; Y10S; Y10S277/00; Y10S277/924; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/49938; Y10T29/4994; Y10T29/53; Y10T29/53709; Y10T29/53717; Y10T29/53722
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF MAKING A UNITARY GASKET SHIELD COMPRISING THE FOLLOWING STEPS: (A) FORMING A CIRCUMFERENTIAL GROOVE IN A TUBE AT A POINT BETWEEN THE ENDS THEREOF; AND (B) SPINNING THE ENDS OF SAID TUBE UNTIL THEY EXTEND RADIALLY OUTWARDLY FROM SAID TUBE SUBSTANTIALLY PERPENDICULAR FROM AND ADJACENT TO SAID GROOVE; WHEREBY A GASKET SHIELD HAVING A CONTINUOUS SMOOTH CURVED SURFACE IS FORMED.
Claim 2
Independent Claim
63 words
A METHOD OF MAKING A UNITARY GASKET SHIELD COMPRISING THE FOLLOWING STEPS: (A) FORMING A CIRCUMFERENTIAL GROOVE IN A TUBE AT A POINT BETWEEN THE ENDS THEREOF; AND (B) SPINNING THE ENDS OF SAID TUBE UNTIL THEY EXTEND RADIALLY OUTWARDLY FROM SAID TUBE SUBSTANTIALLY PERPENDICULAR FROM AND ADJACENT TO SAID GROOVE; WHEREBY A GASKET SHIELD HAVING A CONTINUOUS SMOOTH CURVED SURFACE IS FORMED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |