US2603380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Head and shell joint foe drier drums
Assignee: —
•
Filing: —
•
Granted: 1952-07-15
•
Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:13
CPC Classifications
D; D21; D21F; D21F5/00; D21F5/02; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US560309A
Cited
US1092847A
Cited
US1080859A
Cited
US1113515A
Cited
US1219217A
Cited
GB190482A
Cited
US1846456A
Cited
US1868657A
Cited
US1928396A
Cited
US2343502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |