US2990203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruded connecting tees for scaffolding
Assignee: Werner Co
•
Filing: 1959-08-03
•
Granted: 1961-06-27
•
Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Charles F Grover
- 👤 John W Stubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:14
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/345
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415065A
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US566364A
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US1328509A
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US1582587A
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US2004138A
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US2212912A
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US2347957A
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US2487169A
Cited
FR972215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |