Patent US2532858A successfully refreshed from Google Patents.
Patent US2850157A successfully refreshed from Google Patents.
US2850157A
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Dispensing box for sheet wrapping material
Assignee: Dow Chemical Co
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Filing: 1957-04-10
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Granted: 1958-09-02
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Expires: 1977-04-10
Abstract
No abstract record available.
Inventors
- 👤 Walter A Klein
- 👤 Albert J Mason
- 👤 Holzschu John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:28
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/67; B65D85/671; B65D85/672; B65D83/00; B65D83/08; B65D83/0805; B65D83/0811; B65D83/0841; Y; Y10; Y10T; Y10T225/00; Y10T225/20; Y10T225/238; Y10T225/241; Y10T225/252; Y10T225/287; Y10T225/29; Y10T225/291
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) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |