US2480119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk pulp screen
Assignee: Individual
•
Filing: 1946-02-25
•
Granted: 1949-08-30
•
Expires: 1966-02-25
Abstract
No abstract record available.
Inventors
- 👤 Hervey G Cram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:44
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US501214A
Cited
US2033123A
Cited
FR464660A
Cited
US1421664A
Cited
DE383859C
Cited
US1670473A
Cited
US1722874A
Cited
US1864818A
Cited
AT127217B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |