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US1378442A
Expired / Lapsed
US
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Process of corrugating cylindrical bodies
Assignee: LANSTON MONOTYPE MACHINE Co
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Filing: 1917-11-16
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Granted: 1921-05-17
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Expires: 1937-11-16
Abstract
No abstract record available.
Inventors
- 👤 William E Chalfant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
B; B21; B21D; B21D15/00; B21D15/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805
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) | 1924-05-16 | 1924-11-15 | 1925-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-05-16 | 1928-11-15 | 1929-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-05-16 | 1932-11-15 | 1933-05-17 | $7700.00 | Window Closed / Lapsed |