← Back to Patent Explorer
US3215108A Expired / Lapsed US ⏱️ 0.0 years remaining

Flotation and structural units and building structures

Assignee: Individual
•
Filing: 1964-06-25
•
Granted: 1965-11-02
•
Expires: 1984-06-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Roger H Otis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 03:02
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/44; B63B2035/4426; Y; Y02; Y02A; Y02A30/00

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 92 words
A BUILDING STRUCTURE INCLUDING: A PLURALITY OF BUOYANT MODULES, EACH OF SAID MODULES COMPRISING A SUBSTANCE OF LOW SPECIFIC GRAVITY AND A RIGID FRAME EMBEDDED IN SAID SUBSTANCE; MEANS CONNECTING FRAMES OF ADJACENT MODULES WHEREBY SAID MODULES ARE RIGIDLY CONNECTED TOGETHER TO FORM A RIGID STRUCTURE; VERTICAL COLUMNS SECURED TO SAID FRAMES AND EXTENDING ABOVE SAID MODULES; A ROOF MOUNTED ON THE UPPER ENDS OF SAID COLUMNS, SOME OF SAID COLUMNS EXTENDING DOWNWARDLY BELOW SAID MODULES; AND BRACING MEANS CONNECTING THE LOWER ENDS OF SAID SOME OF SAID COLUMNS BELOW SAID MODULES.

References Cited (Backward Citations)

US3097449A Cited
US3053216A Cited
US3117327A Cited
US3128737A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-11-01 1969-05-03 1969-11-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-11-01 1973-05-03 1973-11-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-11-01 1977-05-03 1977-11-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag