US2776163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction-head for use with a vacuum conveyor plant
Assignee: Individual
•
Filing: 1952-04-23
•
Granted: 1957-01-01
•
Expires: 1972-04-23
Abstract
No abstract record available.
Inventors
- 👤 Cremer Gottfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:47
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65G47/91; B66; B66C; B66C1/00; B66C1/02; B66C1/0231
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315737A
Cited
US1251258A
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US1532255A
Cited
US2042372A
Cited
US2523157A
Cited
US2557260A
Cited
GB680454A
Cited
GB718456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |