US2944503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping tool for forming roof deck
Assignee: Acme Steel Co
•
Filing: 1954-05-12
•
Granted: 1960-07-12
•
Expires: 1974-05-12
Abstract
No abstract record available.
Inventors
- 👤 Allen B Wilson
- 👤 Stanius Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:57
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/02; B21D39/025; E; E04; E04D; E04D15/00; E04D15/04; Y; Y10; Y10T; Y10T29/00; Y10T29/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US430000A
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US518766A
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US1148672A
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US1430807A
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GB206941A
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US1729946A
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US1808452A
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US1816556A
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US1891767A
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US2426670A
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US2693218A
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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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |