Patent US4422206A successfully refreshed from Google Patents.
Patent US2352912A successfully refreshed from Google Patents.
US2352912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube expanding and flaring machine
Assignee: Parker Appliance Co
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Filing: 1941-03-31
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Granted: 1944-07-04
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Expires: 1961-03-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:28
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1021; Y10T279/1033; Y10T279/1037; Y10T279/1041; Y10T279/1045; Y10T279/1071; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/53717; Y10T29/53722; Y10T29/53796; Y10T29/53835
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) | 1947-07-04 | 1948-01-03 | 1948-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-04 | 1952-01-03 | 1952-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-04 | 1956-01-03 | 1956-07-04 | $7700.00 | Window Closed / Lapsed |