US2828871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical stacker
Assignee: Sutcliffe Speakman and Co Ltd
•
Filing: 1953-01-29
•
Granted: 1958-04-01
•
Expires: 1973-01-29
Abstract
No abstract record available.
Inventors
- 👤 Bardsley Norman
- 👤 Nichols Osbert Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:13
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/03; B65G57/06; B65G57/16; B65G57/20; B65G57/22; B65G57/24; B65G57/245; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/106; Y10S414/107; Y10S414/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT51079B
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US1492864A
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US2065673A
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US2397720A
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US2633251A
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US2701650A
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US2586630A
Cited
US2770346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |