Patent US2990922A successfully refreshed from Google Patents.
US2990922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame structure
Assignee: Individual
•
Filing: 1958-11-12
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Granted: 1961-07-04
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Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Deitz A Rudisill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:19
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/988; E06B3/9885; E06B1/00; E06B1/56; E06B1/60; E06B1/6007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2137677A
Cited
US2303844A
Cited
US2589864A
Cited
US2601164A
Cited
US2741344A
Cited
US2810941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |