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US2794664A
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Assignee: A L SMITH IRON Co
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Filing: 1955-03-31
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Granted: 1957-06-04
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Expires: 1975-03-31
Abstract
No abstract record available.
Inventors
- 👤 Kruger Michael Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:50
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; E05C3/16; E05C3/22; E05C3/30; E05C3/34; F; F21; F21V; F21V17/00; F21V17/10; F21V17/107; F21V17/18; F21Y; F21Y2103/00; Y; Y10; Y10S; Y10S292/00; Y10S292/04; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0936; Y10T292/0945; Y10T292/0948
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |