US2639876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded structure
Assignee: Individual
•
Filing: 1947-09-03
•
Granted: 1953-05-26
•
Expires: 1967-09-03
Abstract
No abstract record available.
Inventors
- 👤 Misfeldt Charles Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:34
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/001; B29D99/0014; B64; B64F; B64F5/00; B64F5/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1097848A
Cited
US1272062A
Cited
US1531445A
Cited
US1576317A
Cited
US1671253A
Cited
US1854330A
Cited
US2230393A
Cited
US2225779A
Cited
US2256234A
Cited
US2458686A
Cited
US2371754A
Cited
GB559954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |