US2833457A
Expired / Lapsed
US
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Assignee: Robertson Paper Box Co Inc
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Filing: 1951-10-19
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Granted: 1958-05-06
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Expires: 1971-10-19
Abstract
No abstract record available.
Inventors
- 👤 Walter J Tyrseck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:51
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/52; B65D5/522; B65D5/5226; B65D5/5233; B65D5/524; B65D5/50; B65D5/5023; B65D5/5028; B65D5/5035; B65D5/5038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310765A
Cited
US1226150A
Cited
FR483933A
Cited
US1296158A
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US1353629A
Cited
US1940292A
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US1966734A
Cited
US2346400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |