US3340602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for sealing
Assignee: Lanteris Space LLC
•
Filing: 1965-02-01
•
Granted: 1967-09-12
•
Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Hontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/60; H10W76/10; H10W76/12; H10W76/13; H10W76/134; H10W95/00; H10W72/00; H10W72/50; H10W72/531; H10W72/536; H10W72/541; H10W72/5449; H10W90/00; H10W90/701; H10W90/751; H10W90/756; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
IN A PROCESS FOR HERMETICALLY SEALING ELECTRICAL CIRCUIT MEANS, INCLUDING GOLD-TO-ALUMINUM BONDED CONNECTIONS, IN A HOUSING HAVING A SEALING SURFACE OF GOLD, BY SOLDER BONDING THERETO A CAP HAVING A MATING SEALING SURFACE OF GOLD, THE STEPS COMPRISING: HEATING SAID CAP AND HOUSING, IN THE PRESENCE OF HYDROGEN, TO A TEMPERATURE SUFFICIENT TO RENDER THE SEALING SURFACES RECEPTIVE TO SOLDER BONDING WITHOUT ADVERSELY HEATING THE CIRCUIT MEANS; COOLING SAID CAP AND HOUSING; INTERPOSING A BODY OF SOLDER COMPRISING A GOLD-TIN ALLOY BETWEEN SAID CAP AND HOUSING SEALING SURFACES; SUBJECTING THE CAP, THE HOUSING, AND THE SOLDER THUS ASSEMBLED TO AN AMBIENT ATMOSPHERE OF NITROGEN WHILE HEATING THE RECITED ASSEMBLY TO A TEMPERATURE SUFFICIENT TO MELT THE SOLDER AND DISSOLVE ADJACENT PORTIONS OF THE GOLD SEALING SURFACE WITHOUT ADVERSELY HEATING THE CIRCUIT MEANS AND HOUSING; AND PERMITTING THE SOLDER TO SOLIDIFY.
References Cited (Backward Citations)
US3072832A
Cited
US3202489A
Cited
US3150013A
Cited
US3209450A
Cited
US3271625A
Cited
US3158471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |