US2850070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine to bend metal weatherboard over insulation sheathing
Assignee: IND RES LAB
•
Filing: 1955-01-12
•
Granted: 1958-09-02
•
Expires: 1975-01-12
Abstract
No abstract record available.
Inventors
- 👤 Robert J Castleton
- 👤 William G Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:35
CPC Classifications
B; B21; B21D; B21D49/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49849; Y10T29/49908; Y10T29/49915; Y10T29/53; Y10T29/53709; Y10T29/53787
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2672224A
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US2717668A
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US2707510A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |