Patent US3437360A successfully refreshed from Google Patents.
US3437360A
Expired / Lapsed
US
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Splined butt joint system for lumber siding
Assignee: Simpson Timber Co
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Filing: 1966-06-06
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Granted: 1969-04-08
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Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 John V Gould
- 👤 James E Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:58
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/10; Y; Y10; Y10T; Y10T403/00; Y10T403/55
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) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |