US2690841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable knockdown machine
Assignee: Individual
•
Filing: 1951-03-12
•
Granted: 1954-10-05
•
Expires: 1971-03-12
Abstract
No abstract record available.
Inventors
- 👤 Paul G Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:25
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US201080A
Cited
US560575A
Cited
US1215130A
Cited
US1382393A
Cited
GB416754A
Cited
US2191923A
Cited
US2365179A
Cited
US2377415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |