Patent US3323402A successfully refreshed from Google Patents.
US3323402A
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Thread forms
Assignee: SPS Technologies LLC
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Filing: 1965-10-08
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Granted: 1967-06-06
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward F Gowen
- 👤 Jr Raymond Ollis
- 👤 Richard A Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:02
CPC Classifications
F; F16; F16B; F16B31/00; F16B31/06; B; B21; B21H; B21H3/00; B21H3/02; F04; F04B; F04B53/00; F04B53/10; F04B53/1002; F04B53/101; F16B33/00; F16B33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A SCREW THREAD SYSTEM INCLUDING AN INTERNALLY THREADED MEMBER AND AN EXTERNALLY THREADED MEMBER WHOSE FLANKS, CRESTS AND ROOTS ARE FORMED BY ROLLING, SAID SYSTEM BEING CHARACTERIZED IN THAT (A) THE PRESSURE FLANK OF THE INTERNAL THREAD FROM ITS ROOT AND AT LEAST TO ABOUT THE VICINITY OF ITS PITCH LINE IS DISENGAGED FROM THE PRESSURE FLANK OF THE EXTERNAL THREAD AND THE PRESSURE FLANK OF THE INTERNAL THREAD
Claim 2
Dependent Claim
69 words
A SCREW THREAD SYSTEM INCLUDING AN INTERNALLY THREADED MEMBER AND AN EXTERNALLY THREADED MEMBER WHOSE FLANKS, CRESTS AND ROOTS ARE FORMED BY ROLLING, SAID SYSTEM BEING CHARACTERIZED IN THAT (A) THE PRESSURE FLANK OF THE INTERNAL THREAD FROM ITS ROOT AND AT LEAST TO ABOUT THE VICINITY OF ITS PITCH LINE IS DISENGAGED FROM THE PRESSURE FLANK OF THE EXTERNAL THREAD AND THE PRESSURE FLANK OF THE INTERNAL THREAD
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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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |