US2529566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass bonded insulating composition
Assignee: Mycalex Corp of America
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Filing: 1948-08-17
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Granted: 1950-11-14
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Expires: 1968-08-17
Abstract
No abstract record available.
Inventors
- 👤 Albert J Monack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:20
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/04; C; C03; C03C; C03C14/00; C03C14/004; C03C3/00; C03C3/12; C03C3/23; C03C2214/00; C03C2214/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN ELECTRICAL INSULATING COMPOSITION CONSISTING OF A DISPERSE PHASE COMPRISING 40-70% BY WEIGHT OF FINELY DIVIDED MICA POWDER AND A LOW MELTING GLASS BONDING MEDIUM MADE BY FUSING A COMPOSITION CONSISTING ESSENTIALLY OF 7-13% OF CRYOLITE, 6-14% OF ALKALI CARBONATES SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM AND LITHIUM CARBONATES, 6% OF ALKALINE-EARTH CARBONATES SELECTED FROM THE GROUP CONSISTING OF BARIUM, STRONTIUM AND CALCIUM CARBONATES, 3641% OF BORIC ACID AND 45-26% OF LEAD OXIDE CALCULATED AT PBO.
Claim 2
Dependent Claim
78 words
AN ELECTRICAL INSULATING COMPOSITION CONSISTING OF A DISPERSE PHASE COMPRISING 40-70% BY WEIGHT OF FINELY DIVIDED MICA POWDER AND A LOW MELTING GLASS BONDING MEDIUM MADE BY FUSING A COMPOSITION CONSISTING ESSENTIALLY OF 7-13% OF CRYOLITE, 6-14% OF ALKALI CARBONATES SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM AND LITHIUM CARBONATES, 6% OF ALKALINE-EARTH CARBONATES SELECTED FROM THE GROUP CONSISTING OF BARIUM, STRONTIUM AND CALCIUM CARBONATES, 3641% OF BORIC ACID AND 45-26% OF LEAD OXIDE CALCULATED AT PBO.
References Cited (Backward Citations)
GB569222A
Cited
US2400337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |