US3377087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Union for connecting conduits
Assignee: Brown Fintube Co
•
Filing: 1965-05-05
•
Granted: 1968-04-09
•
Expires: 1985-05-05
Abstract
No abstract record available.
Inventors
- 👤 Fred J Samerdyke
- 👤 William C Sessions
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:38
CPC Classifications
F; F16; F16L; F16L39/00; F16L7/00; F16L7/02; F28; F28F; F28F9/00; F28F9/02; F28F9/0219; F28F9/26; F28F2275/00; F28F2275/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US333412A
Cited
US883075A
Cited
US2422009A
Cited
US2520755A
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US3074480A
Cited
US3325190A
Cited
US3155404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |