US2518779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Waldorf Paper Products Co
•
Filing: 1946-01-26
•
Granted: 1950-08-15
•
Expires: 1966-01-26
Abstract
No abstract record available.
Inventors
- 👤 Russell J Hennessey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:42
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/52; B65D5/526; B65D5/5266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1895974A
Cited
US1934218A
Cited
US1982663A
Cited
US2018824A
Cited
US2020870A
Cited
US2375843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |