US2619675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheets-xsl-ieet i
Assignee: —
•
Filing: —
•
Granted: 1952-12-02
•
Expires: 1969-12-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:43
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/02; B; B32; B32B; B32B5/00; B32B5/02; B32B5/12; C; C08; C08L; C08L95/00; D; D06; D06N; D06N5/00; C04; C04B; C04B2111/00; C04B2111/00474; C04B2111/00586
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1022764A
Cited
US1751690A
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US1785457A
Cited
US1755500A
Cited
US2168288A
Cited
US2157696A
Cited
US2148510A
Cited
US2343600A
Cited
US2326723A
Cited
US2365055A
Cited
US2354593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |