Patent US6146415A successfully refreshed from Google Patents.
Patent US2772608A successfully refreshed from Google Patents.
US2772608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction of edge flashing on molded pulp articles
Assignee: Keyes Fibre Corp
•
Filing: 1951-11-19
•
Granted: 1956-12-04
•
Expires: 1971-11-19
Abstract
No abstract record available.
Inventors
- 👤 Richard L Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:36
CPC Classifications
D; D21; D21J; D21J3/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US488517A
Cited
US798789A
Cited
US868996A
Cited
US1139002A
Cited
US1707430A
Cited
US1845830A
Cited
US1983553A
Cited
US2070040A
Cited
US2000085A
Cited
US2163585A
Cited
US2183869A
Cited
US2377864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |