US2536061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial jade and process of making same
Assignee: Individual
•
Filing: 1949-07-21
•
Granted: 1951-01-02
•
Expires: 1969-07-21
Abstract
No abstract record available.
Inventors
- 👤 Harry J Kahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A SYNTHETIC JADE COMPOSITION COMPRISING THE OXIDES OF SI, AL, PB, ZN, K AND NA, WHEREIN THE OXIDE OF SI IS 26 TO 33%, THE OXIDE OF AL IS 6 TO 9%, THE OXIDE OF PB IS 36 TO 47%, THE OXIDE OF ZN IS 12 TO 16%, AND THE OXIDES OF ALKALI METALS ARE 4.3 TO 6.8%.
Claim 2
Dependent Claim
58 words
A SYNTHETIC JADE COMPOSITION COMPRISING THE OXIDES OF SI, AL, PB, ZN, K AND NA, WHEREIN THE OXIDE OF SI IS 26 TO 33%, THE OXIDE OF AL IS 6 TO 9%, THE OXIDE OF PB IS 36 TO 47%, THE OXIDE OF ZN IS 12 TO 16%, AND THE OXIDES OF ALKALI METALS ARE 4.3 TO 6.8%.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |