Patent US1028913A successfully refreshed from Google Patents.
US2995223A
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Demountable structural frames and couplings therefor
Assignee: Individual
•
Filing: 1959-05-12
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Granted: 1961-08-08
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Expires: 1979-05-12
Abstract
No abstract record available.
Inventors
- 👤 Roys Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:05
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B1/2403; E04B1/38; E04B1/58; E04G; E04G11/00; E04G11/36; E04G11/48; E04G11/50; E04G11/52; E04B2001/2448; E04B2001/2457; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/503
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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |