US3303859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of electron discharge tube grid electrodes
Assignee: RCA Corp
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Filing: 1964-05-07
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Granted: 1967-02-14
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Expires: 1984-05-07
Abstract
No abstract record available.
Inventors
- 👤 Walter T Ackermann
- 👤 Charles W Lindsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:21
CPC Classifications
H; H01; H01J; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A METHOD OF FABRICATING A CYLINDRICAL GRID HAVING A LATERAL WIRE WOUND AROUND A PLURALITY OF SIDE RODS AND A TRUSS WIRE WOUND OVER SAID LATERAL WIRE, SAID METHOD COMPRISING ADVANCING SAID SIDE RODS IN CYLINDRICAL ARRAY PAST A PAIR OF WINDING HEADS, ROTATING SAID WINDING HEADS AROUND SAID SIDE RODS AT A CONSTANT ROTATIONAL RATE FOR WINDING A PAIR OF HELICES AROUND SAID SIDE RODS, AND INCREMENTALLY MOVING SAID SIDE RODS AND ONE ONLY OF SAID WINDING HEADS RELATIVE TO ONE ANOTHER ALONG THE AXIS OF ADVANCE OF SAID SIDE RODS FOR CHANGING THE RATE OF ADVANCE OF SAID SIDE RODS AND SAID ONE WINDING HEAD RELATIVE TO ONE ANOTHER WHILE NOT CHANGING THE RATE OF ADVANCE OF SAID SIDE RODS RELATIVE TO SAID OTHER WINDING HEAD.
Claim 2
Independent Claim
128 words
A METHOD OF FABRICATING A CYLINDRICAL GRID HAVING A LATERAL WIRE WOUND AROUND A PLURALITY OF SIDE RODS AND A TRUSS WIRE WOUND OVER SAID LATERAL WIRE, SAID METHOD COMPRISING ADVANCING SAID SIDE RODS IN CYLINDRICAL ARRAY PAST A PAIR OF WINDING HEADS, ROTATING SAID WINDING HEADS AROUND SAID SIDE RODS AT A CONSTANT ROTATIONAL RATE FOR WINDING A PAIR OF HELICES AROUND SAID SIDE RODS, AND INCREMENTALLY MOVING SAID SIDE RODS AND ONE ONLY OF SAID WINDING HEADS RELATIVE TO ONE ANOTHER ALONG THE AXIS OF ADVANCE OF SAID SIDE RODS FOR CHANGING THE RATE OF ADVANCE OF SAID SIDE RODS AND SAID ONE WINDING HEAD RELATIVE TO ONE ANOTHER WHILE NOT CHANGING THE RATE OF ADVANCE OF SAID SIDE RODS RELATIVE TO SAID OTHER WINDING HEAD.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |