US2615199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material treating apparatus
Assignee: Welding Engineers Inc
•
Filing: 1945-05-15
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Granted: 1952-10-28
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Expires: 1965-05-15
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:26
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/46; B29B7/48; B29B7/484; B29B7/482; B29B7/488; B29B7/489; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/40; B29C48/402; B29C48/404; B29C48/435; B29C48/50; B29C48/505; B29C48/55; B29C48/625; B29C48/63; B29C48/68; B29C48/685; B29C48/687; B29C48/76; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92019; B29C2948/92209; B29C2948/92819; B29C2948/92857; B29C2948/92876; B29C2948/92895; B29C48/03
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |