US3101690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air diffusers and methods of making the same
Assignee: Individual
•
Filing: 1959-12-15
•
Granted: 1963-08-27
•
Expires: 1979-12-15
Abstract
No abstract record available.
Inventors
- 👤 Cortland N O'day
- 👤 George J Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:41
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072; F24F13/08; F24F13/082; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD OF MAKING ELONGATED AIR DIFFUSER ELEMENTS WHICH COMPRISES PROVIDING A STRIP OF METAL, PUNCH CENTRAL BOLT HOLES AND EDGE HALF HOLES TO BE FOLDED INWARDLY TO MATCH THE CENTRAL HOLES, FOLDING THE SIDE EDGES AT RIGHT ANGLES TO CENTRAL PORTION OF THE STRIP, DIE-CUTTING RECTANGULAR OPENINGS IN THE CENTER OF THE STRIP AND FOLDING UP THE DIE-CUT PORTIONS TO FORM OBLIQUE VANES AT RIGHT ANGLES TO THE CENTRAL PORTION OF THE STRIP BUT EXTENDING OBLIQUELY ACROSS THE STRIP AND THEN FINALLY FOLDING IN THE SIDE EDGES TO MEET AT THE CENTER OF THE STRIP AND COVER THE OPENINGS.
Claim 2
Independent Claim
100 words
A METHOD OF MAKING ELONGATED AIR DIFFUSER ELEMENTS WHICH COMPRISES PROVIDING A STRIP OF METAL, PUNCH CENTRAL BOLT HOLES AND EDGE HALF HOLES TO BE FOLDED INWARDLY TO MATCH THE CENTRAL HOLES, FOLDING THE SIDE EDGES AT RIGHT ANGLES TO CENTRAL PORTION OF THE STRIP, DIE-CUTTING RECTANGULAR OPENINGS IN THE CENTER OF THE STRIP AND FOLDING UP THE DIE-CUT PORTIONS TO FORM OBLIQUE VANES AT RIGHT ANGLES TO THE CENTRAL PORTION OF THE STRIP BUT EXTENDING OBLIQUELY ACROSS THE STRIP AND THEN FINALLY FOLDING IN THE SIDE EDGES TO MEET AT THE CENTER OF THE STRIP AND COVER THE OPENINGS.
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |