US3075906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for irradiating pearls and product resulting therefrom
Assignee: Individual
•
Filing: 1960-06-15
•
Granted: 1963-01-29
•
Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Chow Ken-Tang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:32
CPC Classifications
B; B44; B44F; B44F9/00; B44F9/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
THE PROCESS WHICH COMPRISES IRRADIATING PEARLS WITH
Claim 2
Dependent Claim
7 words
THE PROCESS WHICH COMPRISES IRRADIATING PEARLS WITH
Claim 3
Dependent Claim
71 words
THE PROCESS FOR PHOTOPOLYMERIZING NORMALLY LIQUID HIGH ENERGY, IONIZING RADIATON TO A DOSAGE OF AT LAST TO NORMALLY SOLID VINYL MONOMERS WHICH COMPRISES IRRADIATING SUCH MONOMERS IN THE PRESENCE OF WATER WITH 4.5x10**5 R. UNTIL A PERMANENTLY FIXED CHANGE IN COLOR OF SAID PEARLS IS EFFFECTED. RADIATIONS OF A WAVE LENGTH RANGING FROM 10-**1 TO 10-**10 CM, WHILE UTILIZING CATALYST AMOUNTS OF A CATALYST CONSISTING ESSENTIALLY OF A RADIATION-SENSITIVE, SILVER SALT.
Claim 4
Dependent Claim
71 words
THE PROCESS FOR PHOTOPOLYMERIZING NORMALLY LIQUID HIGH ENERGY, IONIZING RADIATON TO A DOSAGE OF AT LAST TO NORMALLY SOLID VINYL MONOMERS WHICH COMPRISES IRRADIATING SUCH MONOMERS IN THE PRESENCE OF WATER WITH 4.5x10**5 R. UNTIL A PERMANENTLY FIXED CHANGE IN COLOR OF SAID PEARLS IS EFFFECTED. RADIATIONS OF A WAVE LENGTH RANGING FROM 10-**1 TO 10-**10 CM, WHILE UTILIZING CATALYST AMOUNTS OF A CATALYST CONSISTING ESSENTIALLY OF A RADIATION-SENSITIVE, SILVER SALT.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |