US2717776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat-treating wires
Assignee: AT&T Inc
•
Filing: 1951-08-25
•
Granted: 1955-09-13
•
Expires: 1971-08-25
Abstract
No abstract record available.
Inventors
- 👤 Vincent A Rayburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:29
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/62; C21D9/561
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US323087A
Cited
US1147731A
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US1362367A
Cited
US1533491A
Cited
US2187785A
Cited
US2300329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |