US2970858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: HEINRICH SUDHAUS SOHNE
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Filing: 1959-04-29
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Granted: 1961-02-07
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Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 Norrenberg-Sudhaus Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:07
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/48; E05B65/50; Y; Y10; Y10S; Y10S292/00; Y10S292/50; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997; Y10T292/31; Y10T292/314; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/5058; Y10T70/508; Y10T70/5084
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) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |