US2504850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box construction
Assignee: Celluplastic Corp
•
Filing: 1947-11-01
•
Granted: 1950-04-18
•
Expires: 1967-11-01
Abstract
No abstract record available.
Inventors
- 👤 Herman B Lermer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:10
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/021; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/0012; B65D2543/00175; B65D2543/00194; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00518; B65D2543/00537; B65D2543/00546; B65D2543/00574; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00648; B65D2543/00675; B65D2543/00703; B65D2543/00712; B65D2543/00722; B65D2543/00759; B65D2543/00787; B65D2543/00805; B65D2543/00824; B65D2543/00944
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US26891A
Cited
GB190312222A
Cited
GB191400221A
Cited
GB182352A
Cited
US1542115A
Cited
US1886711A
Cited
US2141013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |