US1619975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube-cutting machine
Assignee: MD Knowlton Co
•
Filing: 1923-07-14
•
Granted: 1927-03-08
•
Expires: 1943-07-14
Abstract
No abstract record available.
Inventors
- 👤 Edgar M Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:34
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/56; B26D1/60; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4653; Y10T83/4656; Y10T83/4676; Y10T83/4757; Y10T83/4766; Y10T83/4789; Y10T83/4795; Y10T83/4812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-03-07 | 1930-09-06 | 1931-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-03-07 | 1934-09-06 | 1935-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-03-07 | 1938-09-06 | 1939-03-08 | $7700.00 | Window Closed / Lapsed |