US2739634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stretch-forming machine
Assignee: Individual
•
Filing: 1952-01-05
•
Granted: 1956-03-27
•
Expires: 1972-01-05
Abstract
No abstract record available.
Inventors
- 👤 Landon R Gray
- 👤 Harry P Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:12
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/02; G06K19/022; B; B21; B21D; B21D11/00; B21D11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1280991A
Cited
US2269549A
Cited
US2287933A
Cited
US2275174A
Cited
US2431173A
Cited
US2400514A
Cited
US2515752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |