Patent JPS4950700A successfully refreshed from Google Patents.
US3513871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triple swivel joint
Assignee: Individual
•
Filing: 1967-10-10
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Granted: 1970-05-26
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Expires: 1987-10-10
Abstract
No abstract record available.
Inventors
- 👤 David Bruce Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:01
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/346; E04B1/3465; F; F16; F16L; F16L27/00; F16L27/08; F16L27/0861; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/8593; Y10T137/8807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563531A
Cited
US2131901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |