Patent US2651740A successfully refreshed from Google Patents.
Patent US2640394A successfully refreshed from Google Patents.
Patent US3079835A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3079835A Expired / Lapsed US ⏱️ 0.0 years remaining

Alignment theodolite

Assignee: Applied Biosystems Inc
•
Filing: 1959-01-14
•
Granted: 1963-03-05
•
Expires: 1979-01-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Saperstein Sol

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:00
CPC Classifications
G; G01; G01C; G01C25/00; G01C1/00; G01C1/02; G01S; G01S3/00; G01S3/78

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 87 words
A SYSTEM OF THE CHARACTER DESCRIBED TO DETERMINE THE ANGULAR DEVIATION OF A DISTANT OBJECT FROM A NORMAL POSITION COMPRISING MEANS PROVIDING A PAIR OF SEPARATE RADIANT ENERGY BEAMS, MEANS TO MODULATE SAID BEAMS IN PHASE OPPOSITION AT A FIRST FREQUENCY, MEANS TO MODULATE SAID BEAMS IN PHASE COINCIDENCE AT A SECOND FREQUENCY, MEANS TO DIRECT SAID MODULATED BEAMS TO A DISTANT REFLECTIVE OBJECT, ENTRANCE SLIT MEANS ADAPTED TO RECEIVE PORTIONS OF SAID BEAMS REFLECTED FROM THE DISTANT OBJECT, RADIANT ENERGY SENSITIVE MEANS POSITIONED TO RECEIVE THE
Claim 2
Independent Claim 87 words
A SYSTEM OF THE CHARACTER DESCRIBED TO DETERMINE THE ANGULAR DEVIATION OF A DISTANT OBJECT FROM A NORMAL POSITION COMPRISING MEANS PROVIDING A PAIR OF SEPARATE RADIANT ENERGY BEAMS, MEANS TO MODULATE SAID BEAMS IN PHASE OPPOSITION AT A FIRST FREQUENCY, MEANS TO MODULATE SAID BEAMS IN PHASE COINCIDENCE AT A SECOND FREQUENCY, MEANS TO DIRECT SAID MODULATED BEAMS TO A DISTANT REFLECTIVE OBJECT, ENTRANCE SLIT MEANS ADAPTED TO RECEIVE PORTIONS OF SAID BEAMS REFLECTED FROM THE DISTANT OBJECT, RADIANT ENERGY SENSITIVE MEANS POSITIONED TO RECEIVE THE

References Cited (Backward Citations)

US2369622A Cited
GB519417A Cited
US2483102A Cited
US2722156A Cited
US2905828A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-03-04 1966-09-03 1967-03-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-03-04 1970-09-03 1971-03-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-03-04 1974-09-03 1975-03-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag