US2863835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perborate composition
Assignee: Theobald Ind
•
Filing: 1957-10-08
•
Granted: 1958-12-09
•
Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Henry A Goldsmith
- 👤 Goldberg Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:09
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/055; C01B15/12; C11; C11D; C11D11/00; C11D11/02; C11D3/00; C11D3/39; C11D3/3902; C11D3/3937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A STABILIZED PERBORATE COMPOSITION OF IMPROVED RESISTANCE TO CAKING TOGETHER AND DELIQUENSCENCE OF THE PARTICLES, THE COMPOSITION BEING IN THE FORM OF FINE, HOLLOW, FREE FLOWING, SPRAY DRIED PARTICLES COMPRISING PARTIALLY HYDRATED SODIUM PERBORATE AND PARTIALLY HYDRATED SODIUM TRIPOLYPHOSPHATE, THE PROPORTIONS ON THE ANHYDROUS BASIS BEING AT LEAST ABOUT 50 PARTS OF THE TRIPOLYPHOSPHATE FOR 100 PARTS OF THE PERBORATE
Claim 2
Dependent Claim
60 words
A STABILIZED PERBORATE COMPOSITION OF IMPROVED RESISTANCE TO CAKING TOGETHER AND DELIQUENSCENCE OF THE PARTICLES, THE COMPOSITION BEING IN THE FORM OF FINE, HOLLOW, FREE FLOWING, SPRAY DRIED PARTICLES COMPRISING PARTIALLY HYDRATED SODIUM PERBORATE AND PARTIALLY HYDRATED SODIUM TRIPOLYPHOSPHATE, THE PROPORTIONS ON THE ANHYDROUS BASIS BEING AT LEAST ABOUT 50 PARTS OF THE TRIPOLYPHOSPHATE FOR 100 PARTS OF THE PERBORATE
References Cited (Backward Citations)
US2515577A
Cited
US2623856A
Cited
US1978953A
Cited
US2141189A
Cited
CH185916A
Cited
US2224834A
Cited
US2308992A
Cited
US2491789A
Cited
US2712529A
Cited
US2706178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |