US3064998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lockable swivel pipe coupling
Assignee: Individual
•
Filing: 1960-10-31
•
Granted: 1962-11-20
•
Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 George A Syverson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:13
CPC Classifications
F; F16; F16N; F16N21/00; F16L; F16L19/00; F16L19/02; F16L19/025; F16L27/00; F16L27/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US672498A
Cited
US2040177A
Cited
US2190344A
Cited
US2529685A
Cited
US2587938A
Cited
US2543311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |