US3529516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and compositions for improving the bending quality of water resistant corrugated paperboard
Assignee: Union Oil Company of California
•
Filing: 1966-04-04
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Granted: 1970-09-22
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Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 William Smith Dorsey
- 👤 Thomas Hallis Jr
- 👤 Edward A Pullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:13
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/4266; B31; B31B; B31B50/00; B31B50/74; B31B50/742; B31B50/743; Y; Y10; Y10S; Y10S229/00; Y10S229/939
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |