US2579390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making hollow articles
Assignee: Individual
•
Filing: 1950-06-30
•
Granted: 1951-12-18
•
Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:09
CPC Classifications
C; C14; C14C; C14C3/00; C14C3/02; C14C3/08; B; B29; B29C; B29C49/00; B29C49/28; B29C49/30; B29C49/36; B29C49/42; B29C49/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2321319A
Cited
US1263141A
Cited
US1654647A
Cited
US2192507A
Cited
US2187432A
Cited
US2515093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |