Patent US2631642A successfully refreshed from Google Patents.
US2631642A
Expired / Lapsed
US
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Box sealing method and apparatus
Assignee: Chicago Carton Co
•
Filing: 1949-07-22
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Granted: 1953-03-17
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Expires: 1969-07-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Richardson
- 👤 Walter T Ritter
- 👤 Robert O Ragan
- 👤 Don W Coy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:34
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/10; B65B51/22; Y; Y10; Y10S; Y10S53/00; Y10S53/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2288269A
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US2346776A
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US2397615A
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US2388824A
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US2479290A
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GB599023A
Cited
GB609526A
Cited
US2480501A
Cited
US2555874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |