US2616145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Changeable pattern stencil for use in molding decorative wall facings
Assignee: Individual
•
Filing: 1950-01-04
•
Granted: 1952-11-04
•
Expires: 1970-01-04
Abstract
No abstract record available.
Inventors
- 👤 Harry M Dufford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:29
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1341528A
Cited
US1532684A
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US1564578A
Cited
US1968189A
Cited
US2113086A
Cited
US2514805A
Cited
US2567843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |