US2602872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for equipping crystals with wires
Assignee: AT&T Inc
•
Filing: 1948-12-30
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Granted: 1952-07-08
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Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:44
CPC Classifications
H; H03; H03H; H03H3/00; H03H3/007; H03H3/02; H10; H10W; H10W72/00; H10W72/071; H10W72/0711; H10W72/075; H10W72/07551; H10W72/07554; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |