US2521960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paint preheater
Assignee: RELIABLE PRODUCTS Manufacturing CO Inc
•
Filing: 1948-06-02
•
Granted: 1950-09-12
•
Expires: 1968-06-02
Abstract
No abstract record available.
Inventors
- 👤 Abraham A Arvintz
- 👤 Nathan A Arvins
- 👤 Robert A Arvintz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:22
CPC Classifications
H; H05; H05B; H05B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1356881A
Cited
US1963367A
Cited
US1886135A
Cited
US2048104A
Cited
US2167940A
Cited
US2123604A
Cited
US2350429A
Cited
US2377785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |