US3217824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lawn mower with improved grounding means
Assignee: Individual
•
Filing: 1961-05-11
•
Granted: 1965-11-16
•
Expires: 1981-05-11
Abstract
No abstract record available.
Inventors
- 👤 Jepson Ivar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:40
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/67; A01D34/68; A01D34/6806; A01D34/64; A01D34/66; A01D2101/00; Y; Y10; Y10S; Y10S152/00; Y10S152/02; Y10T; Y10T152/00; Y10T152/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A LAWN MOWER COMPRISING A CARRIAGE, A PLURALITY OF WHEELS SUPPORTING SAID CARRIAGE, RESILIENT ELECTRICAL INSULATING MATERIAL DEFINING TIRES OF EACH OF SAID WHEELS, AN ELECTRIC MOTOR SUPPORTED ON SAID CARRIAGE, A POWER CORD CONNECTED TO SAID MOTOR FOR ENERGIZING SAID MOTOR FROM A SOURCE OF ELECTRICAL ENERGY, CONDUCTING MEANS COMPRISING A WIRE RING ENCOMPASSING THE CIRCUMFERENCE OF AT LEAST ONE OF SAID TIRES AND SECURED THERETO SO THAT SAID RING IS IN CONTINUOUS ENGAGEMENT WITH A SUPPORTING SURFACE WHEN
Claim 2
Dependent Claim
80 words
A LAWN MOWER COMPRISING A CARRIAGE, A PLURALITY OF WHEELS SUPPORTING SAID CARRIAGE, RESILIENT ELECTRICAL INSULATING MATERIAL DEFINING TIRES OF EACH OF SAID WHEELS, AN ELECTRIC MOTOR SUPPORTED ON SAID CARRIAGE, A POWER CORD CONNECTED TO SAID MOTOR FOR ENERGIZING SAID MOTOR FROM A SOURCE OF ELECTRICAL ENERGY, CONDUCTING MEANS COMPRISING A WIRE RING ENCOMPASSING THE CIRCUMFERENCE OF AT LEAST ONE OF SAID TIRES AND SECURED THERETO SO THAT SAID RING IS IN CONTINUOUS ENGAGEMENT WITH A SUPPORTING SURFACE WHEN
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |