US3561084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of terminating a lamp filament
Assignee: VCH INTERNATIONAL Ltd
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Filing: 1968-10-04
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Granted: 1971-02-09
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Expires: 1988-10-04
Abstract
Abstract A LAMP FILAMENT IS RELIABLY AND FIRMLY CONNECTED BOTH ELECTRICALLY AND MECHANICALLY TO A LEAD WIRE OR MOUNTING POST BY A BODY OF METALLIC MATERIAL INTIMATELY ENTRAPPING THE FILAMENT AND METALLURGICALLY BONDED TO THE LEAD WIRE. IN ORDER TO TERMINATE THE FILAMENT, THE FILAMENT IS PLACED ON THE LEAD WIRE AND OVERLAID WITH A BODY OF METAL. THE METAL IS HEATED TO A PLASTIC OR SEMI-PLASTIC AND NON-LIQUID STATE AND IS PRESSED AGAINST THE FILAMENT AND LEAD WIRE SO THAT THE FILAMENT IS ENVELOPED BY THE METAL AND THE METAL IS DIFFUSION BONDED TO THE LEAD WIRE.
Inventors
- 👤 Richard E Sims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:01
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/002; B23K20/004; B23K20/005; B23K20/007; B23K35/00; B23K35/001; B23K35/005; H; H01; H01K; H01K1/00; H01K1/02; H01K1/16; H01K3/00; H01K3/06; H10; H10W; H10W72/00; H10W72/071; H10W72/0711; H10W72/07141; H10W72/075; H10W72/07531; H10W72/07532; H10W72/50; H10W72/531; H10W72/536; H10W72/551; H10W72/552; H10W72/5522; H10W72/59
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |