US3429588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint construction
Assignee: Individual
•
Filing: 1966-05-26
•
Granted: 1969-02-25
•
Expires: 1986-05-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:44
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/02; F16L27/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US95921A
Cited
US1076962A
Cited
GB166718A
Cited
US2286122A
Cited
GB691653A
Cited
US2874978A
Cited
US3122383A
Cited
US3306636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |