Patent US3063875A successfully refreshed from Google Patents.
US3063875A
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Method and composition for cleaning tombstones
Assignee: Individual
•
Filing: 1959-02-24
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Granted: 1962-11-13
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Miles E Barry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:44
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D1/00; C11D1/66; C11D1/72; C11D3/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A LIQUID FOR CLEANING TOMBSTONES IN THE PRESENCE OF VALUABLE VEGETATION WHICH CONSISTS ESSENTIALLY OF AN AQUEOUS MIXTURE OF ORTHOPHOSPHORIC ACID AND AMMONIUM BIFLUORIDE IN A RATIO OF ABOUT 1.25 TO 1.8 PARTS BY WEIGHT OF ORTHOPHOSPHORIC ACID TO 1 PART BY WEIGHT OF AMMONIUM BIFLUORIDE AND A SMALL QUANTITY OF WATERSOLUBLE NON-IONIC SURFACE ACTIVE AGENT SUFFICIENT TO PROVIDE AN HOMOGENEOUS AQUEOUS MIXTURE.
Claim 2
Dependent Claim
63 words
A LIQUID FOR CLEANING TOMBSTONES IN THE PRESENCE OF VALUABLE VEGETATION WHICH CONSISTS ESSENTIALLY OF AN AQUEOUS MIXTURE OF ORTHOPHOSPHORIC ACID AND AMMONIUM BIFLUORIDE IN A RATIO OF ABOUT 1.25 TO 1.8 PARTS BY WEIGHT OF ORTHOPHOSPHORIC ACID TO 1 PART BY WEIGHT OF AMMONIUM BIFLUORIDE AND A SMALL QUANTITY OF WATERSOLUBLE NON-IONIC SURFACE ACTIVE AGENT SUFFICIENT TO PROVIDE AN HOMOGENEOUS AQUEOUS MIXTURE.
References Cited (Backward Citations)
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Cited
US1949713A
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US2257960A
Cited
US2316220A
Cited
US2316219A
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US2529549A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |