Patent US2997769A successfully refreshed from Google Patents.
US2997769A
Expired / Lapsed
US
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Tie rod assembly for concrete wall form panels
Assignee: General Electric Co
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Filing: 1959-11-23
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Granted: 1961-08-29
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 George F Bowden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:31
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0002; B28B7/0014; E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721; E04G9/00; E04G9/02; E04G2009/023; E04G2009/025; Y; Y10; Y10S; Y10S425/00; Y10S425/129
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US505215A
Cited
US1301500A
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US1976913A
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US2140772A
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US2640249A
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US2859503A
Cited
GB787200A
Cited
US2912482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |