Patent US789691A successfully refreshed from Google Patents.
Patent US3421751A successfully refreshed from Google Patents.
US3421751A
Expired / Lapsed
US
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Apparatus for fabricating wood structures
Assignee: TROY STEEL CORP
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Filing: 1966-12-23
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Granted: 1969-01-14
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Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Donald Menge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:05
CPC Classifications
B; B27; B27F; B27F7/00; B27F7/15; B27F7/155; Y; Y10; Y10S; Y10S269/00; Y10S269/91; Y10T; Y10T29/00; Y10T29/53; Y10T29/53961; Y10T29/5397
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |