Patent US1878622A successfully refreshed from Google Patents.
US1878622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for lock-seaming sheets and strips
Assignee: METALFOILS Inc
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Filing: 1930-05-31
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Granted: 1932-09-20
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Expires: 1950-05-31
Abstract
No abstract record available.
Inventors
- 👤 William T Deacon
- 👤 Harry F Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:02
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/02; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53709
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) | 1935-09-20 | 1936-03-21 | 1936-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-20 | 1940-03-21 | 1940-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-20 | 1944-03-21 | 1944-09-20 | $7700.00 | Window Closed / Lapsed |