US3332552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewage disposal septic tanks
Assignee: Individual
•
Filing: 1963-09-27
•
Granted: 1967-07-25
•
Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Robert L Zabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:25
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/28; B; B01; B01D; B01D29/00; B01D29/01; B01D29/05; B01D29/07; B01D29/071; B01D29/44; B01D29/46; B01D35/00; B01D35/02; B01D35/027; B01D35/0276
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN OULET TRAP FOR A SEPTIC TANK COMPRISING: (A) A PLURALITY OF DISC-DAM UNITS, (1) EACH UNIT COMPRISING (A) A DISC-LIKE AND (B) A CONTINUOUS ELONGATE DAM ARRANGED ON SAID BASE AND EXTENDING FROM ONE SIDE OF SAID BASE TO THE OTHER SO AS TO SEPARATE SAID BASE INTO AN UPSTREAM PORTION AND A DOWNSTREAM PORTION, (1) SAID DOWNSTREAM PORTION OF SAID BASE BEING IMPERFORATE; (2) SAID UNITS BEING ARRANGED IN SUPERPOSED STACK-FORMING RELATIONSHIP SUCH THAT THE BASE OF EACH UPPER OVER-LYING UNIT (A) IS SPACED FROM THE UPPER EDGE OF THE DAM OF THE UNDER-LYING UNIT AND (B) COOPERATES THEREWITH TO FORM A HORIZONTALLY ELONGATE VERTICALLY NARROW OUTLET SLOT; (3) SPACING MEANS FOR HOLDING SAID UNITS IN SPACED RELATIONSHIP, AND
Claim 2
Dependent Claim
121 words
AN OULET TRAP FOR A SEPTIC TANK COMPRISING: (A) A PLURALITY OF DISC-DAM UNITS, (1) EACH UNIT COMPRISING (A) A DISC-LIKE AND (B) A CONTINUOUS ELONGATE DAM ARRANGED ON SAID BASE AND EXTENDING FROM ONE SIDE OF SAID BASE TO THE OTHER SO AS TO SEPARATE SAID BASE INTO AN UPSTREAM PORTION AND A DOWNSTREAM PORTION, (1) SAID DOWNSTREAM PORTION OF SAID BASE BEING IMPERFORATE; (2) SAID UNITS BEING ARRANGED IN SUPERPOSED STACK-FORMING RELATIONSHIP SUCH THAT THE BASE OF EACH UPPER OVER-LYING UNIT (A) IS SPACED FROM THE UPPER EDGE OF THE DAM OF THE UNDER-LYING UNIT AND (B) COOPERATES THEREWITH TO FORM A HORIZONTALLY ELONGATE VERTICALLY NARROW OUTLET SLOT; (3) SPACING MEANS FOR HOLDING SAID UNITS IN SPACED RELATIONSHIP, AND
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |