US3438805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical metallizing process
Assignee: EIDP Inc
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Filing: 1966-04-06
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Granted: 1969-04-15
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Expires: 1986-04-06
Abstract
No abstract record available.
Inventors
- 👤 Earl M Potrafke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:33
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/08; C23; C23C; C23C18/00; C23C18/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD OF CHEMICALLY METALIZING A SUBSTRATE WHICH COMPRISES HEATING A METAL SALT/PHOSPHINE COMPLEX DERIVED FROM ONE MOLE OF A NON-ORGANOMETALLIC SALT OF A NORMALLY SOLID HEAVY METAL OF THE DEMING PERIODIC TABLE AND 1 TO 4 MOLES OF A TRIOGANOPHOSPHINE IN WHICH EACH ORGANO GROUP IS A HYDROCARBYL OR DIHYDROCARBYLAMINO RADICAL IN THE PRESENCE OF THE SUBSTATE TO BE METALLIZED AT A TEMPERATURE OF 25* TO 350*C., BUT BELOW THE DECOMPOSITION TEMPERATURE OF THE SUBSTRATE AND THE METAL SALT ALONE, PROVIDED THAT WHEN THE SUBSTRATE IS NOT A HEAVY METAL OF THE DEMING PERIODIC TABLE OTHER THAN THE PLATING METAL, THE METAL SALT/PHOSPHINE COMPLEX IS IN SUBSTANTIALLY PURE FORM IN DIRECT CONTACT WITH THE SUBSTRATE.
Claim 2
Independent Claim
116 words
A METHOD OF CHEMICALLY METALIZING A SUBSTRATE WHICH COMPRISES HEATING A METAL SALT/PHOSPHINE COMPLEX DERIVED FROM ONE MOLE OF A NON-ORGANOMETALLIC SALT OF A NORMALLY SOLID HEAVY METAL OF THE DEMING PERIODIC TABLE AND 1 TO 4 MOLES OF A TRIOGANOPHOSPHINE IN WHICH EACH ORGANO GROUP IS A HYDROCARBYL OR DIHYDROCARBYLAMINO RADICAL IN THE PRESENCE OF THE SUBSTATE TO BE METALLIZED AT A TEMPERATURE OF 25* TO 350*C., BUT BELOW THE DECOMPOSITION TEMPERATURE OF THE SUBSTRATE AND THE METAL SALT ALONE, PROVIDED THAT WHEN THE SUBSTRATE IS NOT A HEAVY METAL OF THE DEMING PERIODIC TABLE OTHER THAN THE PLATING METAL, THE METAL SALT/PHOSPHINE COMPLEX IS IN SUBSTANTIALLY PURE FORM IN DIRECT CONTACT WITH THE SUBSTRATE.
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |