US2790997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting apparatus
Assignee: H D BOGGS CO Ltd
•
Filing: 1952-06-23
•
Granted: 1957-05-07
•
Expires: 1972-06-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:41
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/04; B29C41/00; B29C41/02; B29C41/04; B29C41/042; B29C41/34; B29C41/46; B29L; B29L2031/00; B29L2031/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1303889A
Cited
US1199997A
Cited
US1663896A
Cited
US1703970A
Cited
US1783094A
Cited
US1792813A
Cited
US1832066A
Cited
US1992739A
Cited
US2278858A
Cited
US2455248A
Cited
US2701403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |