US2515017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making wax negative molds
Assignee: Individual
•
Filing: 1947-11-29
•
Granted: 1950-07-11
•
Expires: 1967-11-29
Abstract
No abstract record available.
Inventors
- 👤 Nicholson Celtic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:24
CPC Classifications
B; B29; B29C; B29C33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US519438A
Cited
USRE15641E
Cited
US803799A
Cited
US1659399A
Cited
US1373121A
Cited
US1506062A
Cited
US1876229A
Cited
US2346784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |