US3153284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drafting machine
Assignee: Individual
•
Filing: 1962-08-06
•
Granted: 1964-10-20
•
Expires: 1982-08-06
Abstract
No abstract record available.
Inventors
- 👤 Harlan N Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:17
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/04; B43L13/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A DRAFTING MACHINE: (A) A TRACK MEMBER; (B) SCALE MEANS INCLUDING AN ADJUSTABLE HEAD MEMBER; (C) MEANS SUPPORTING SAID SCALE MEANS FOR ADJUSTING LINEAR MOVEMENT ALONG SAID TRACK MEMBER INCLUDING A WHEELED CARRIAGE; (D) BRAKING MEANS ON SAID CARRIAGE HAVING BRAKING SHOES NORMALLY BIASED TO A POSITION IN ENGAGEMENT WITH PORTIONS OF SAID TRACK MEMBER FOR HOLDING SAID SUPPORTING MEANS AGAINST MOVEMENT FROM AN ADJUSTED POSITION; (E) ELECTRO-MAGNETIC MEANS ON SAID CARRIAGE ENERGIZABLE TO RELEASE SAID BRAKING MEANS; (F) AN ENERGIZING CIRCUIT FOR SAID ELECTRO-MAGNETIC MEANS INCLUDING SLIDE CONTACTS ON SAID CARRIAGE HAVING CONDUCTING ENGAGEMENT WITH FIXED CONDUCTORS ON SAID TRACK MEMBER; AND (G) MEANS FOR CONTROLLING THE ENERGIZATION OF SAID ELECTRO-MAGNETIC MEANS FROM SAID ENERGIZING CIRCUIT, INCLUDING MANUALLY OPERABLE CONTACTS ON SAID HEAD MEMBER.
Claim 2
Dependent Claim
126 words
IN A DRAFTING MACHINE: (A) A TRACK MEMBER; (B) SCALE MEANS INCLUDING AN ADJUSTABLE HEAD MEMBER; (C) MEANS SUPPORTING SAID SCALE MEANS FOR ADJUSTING LINEAR MOVEMENT ALONG SAID TRACK MEMBER INCLUDING A WHEELED CARRIAGE; (D) BRAKING MEANS ON SAID CARRIAGE HAVING BRAKING SHOES NORMALLY BIASED TO A POSITION IN ENGAGEMENT WITH PORTIONS OF SAID TRACK MEMBER FOR HOLDING SAID SUPPORTING MEANS AGAINST MOVEMENT FROM AN ADJUSTED POSITION; (E) ELECTRO-MAGNETIC MEANS ON SAID CARRIAGE ENERGIZABLE TO RELEASE SAID BRAKING MEANS; (F) AN ENERGIZING CIRCUIT FOR SAID ELECTRO-MAGNETIC MEANS INCLUDING SLIDE CONTACTS ON SAID CARRIAGE HAVING CONDUCTING ENGAGEMENT WITH FIXED CONDUCTORS ON SAID TRACK MEMBER; AND (G) MEANS FOR CONTROLLING THE ENERGIZATION OF SAID ELECTRO-MAGNETIC MEANS FROM SAID ENERGIZING CIRCUIT, INCLUDING MANUALLY OPERABLE CONTACTS ON SAID HEAD MEMBER.
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) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |