US3441502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the removal and disposal of scale
Assignee: CARLOS A TENORIO
•
Filing: 1967-02-20
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Granted: 1969-04-29
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Expires: 1987-02-20
Abstract
No abstract record available.
Inventors
- 👤 Carlos A Tenorio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:09
CPC Classifications
C; C02; C02F; C02F9/00; B; B03; B03C; B03C1/00; B21; B21B; B21B45/00; B21B45/04; B21B45/08; C02F1/00; C02F1/48; C02F1/488; C02F1/52; C02F2101/00; C02F2101/10; C02F2101/20
Claims Analysis
Total Claims: 0
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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) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |