US3531844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a branched conduit
Assignee: Motors Liquidation Co
•
Filing: 1967-08-14
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Granted: 1970-10-06
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Expires: 1987-08-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Cassel
- 👤 Harry L Redding
- 👤 John A Walford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:56
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; B21C37/29; F16; F16L; F16L25/00; F16L25/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |