US3256991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination hard and soft water system
Assignee: Individual
•
Filing: 1963-05-28
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Granted: 1966-06-21
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Expires: 1983-05-28
Abstract
No abstract record available.
Inventors
- 👤 Irvin E Kamrud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:10
CPC Classifications
E; E03; E03B; E03B7/00; E03B7/04; C; C02; C02F; C02F5/00; C02F5/02; C02F5/025; F; F24; F24D; F24D17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A WATER SUPPLY SYSTEM SUPPLIED FROM A HARD WATER SOURCE, A WATER SOFTENER, WATER HEATING MEANS, A SERVICE LINE EXTENDING FROM THE HARD WATER SOURCE TO A FIRST WATER TAP, A FIRST BRANCH LINE COMMUNICATING THE SERVICE LINE WITH THE WATER SOFTENER, A FIRST DELIVERY LINE EXTENDING FROM THE WATER SOFTENER TO A SECOND WATER TAP, A SECOND BRANCH LINE COMMUNICATING THE FIRST DELIVERY LINE WITH THE HEATING MEANS, A SECOND DELIVERY LINE EXTENDING FROM THE HEATING MEANS TO A THIRD WATER TAP, A THIRD BRANCH LINE COMMUNICATING THE SERVICE LINE WITH THE HEATING MEANS, AND A THIRD DELIVERY LINE EXTENDING FROM THE HEATING MEANS TO A FOURTH WATER TAP.
Claim 2
Dependent Claim
111 words
IN A WATER SUPPLY SYSTEM SUPPLIED FROM A HARD WATER SOURCE, A WATER SOFTENER, WATER HEATING MEANS, A SERVICE LINE EXTENDING FROM THE HARD WATER SOURCE TO A FIRST WATER TAP, A FIRST BRANCH LINE COMMUNICATING THE SERVICE LINE WITH THE WATER SOFTENER, A FIRST DELIVERY LINE EXTENDING FROM THE WATER SOFTENER TO A SECOND WATER TAP, A SECOND BRANCH LINE COMMUNICATING THE FIRST DELIVERY LINE WITH THE HEATING MEANS, A SECOND DELIVERY LINE EXTENDING FROM THE HEATING MEANS TO A THIRD WATER TAP, A THIRD BRANCH LINE COMMUNICATING THE SERVICE LINE WITH THE HEATING MEANS, AND A THIRD DELIVERY LINE EXTENDING FROM THE HEATING MEANS TO A FOURTH WATER TAP.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |