US3429434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package and method of forming same
Assignee: Packaging Corp of America
•
Filing: 1966-11-10
•
Granted: 1969-02-25
•
Expires: 1986-11-10
Abstract
No abstract record available.
Inventors
- 👤 Robert J Hickin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:39
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/4295; B65D85/00; B65D85/07; F; F24; F24F; F24F13/00; F24F13/28; Y; Y10; Y10S; Y10S55/00; Y10S55/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1948751A
Cited
US2118271A
Cited
US2138874A
Cited
US2354186A
Cited
US2915208A
Cited
US3278013A
Cited
US3197062A
Cited
US3231085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |