US2965308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank adapter kit
Assignee: HOLDREN BROTHERS Inc
•
Filing: 1958-02-17
•
Granted: 1960-12-20
•
Expires: 1978-02-17
Abstract
No abstract record available.
Inventors
- 👤 Donald R Holdren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:00
CPC Classifications
F; F16; F16L; F16L7/00; F16L7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735700A
Cited
US993660A
Cited
US1182737A
Cited
US1404780A
Cited
US1809407A
Cited
US1983977A
Cited
GB454793A
Cited
GB499603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |