Patent US3308218A successfully refreshed from Google Patents.
US3308218A
Expired / Lapsed
US
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Method for producing bonded fibrous products
Assignee: Wood Conversion Co
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Filing: 1961-05-24
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Granted: 1967-03-07
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Expires: 1981-05-24
Abstract
No abstract record available.
Inventors
- 👤 Donald E Wiegand
- 👤 John E Cadotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:02
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/04; B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D21H5/00; D21H5/26; D21H5/2607; D21H5/2628
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN THE PROCESS FO MECHANICALLY CONVERTING A SUPPLY OF MATERIAL INTO INTERMESHABLE PARTICLES DISPERSED IN AIR, AND DEPOSITING THE PARTICLES AND ACTIVATABLE BINDER FROM AIR SUSPENSION IN SUPERIMPOSED RANDOM RELATION TO FORM A MAT, THE STEPS OF APPLYING TO THE PARTICLES WHILE SUSPENDED IN AIR MEANS TO PROVIDE TACK, WHEREBY SAID TACK, WHEREBY SAID TACK ON DEPOSITION OF THE PARTICLES CREATES RESISTANCE TO INTERMESHING WITH THE PREVIOUSLY DEPOSITED PARTICLES, SHIFTING POSITIONS OF DEPOSITED PARTICLES TO EFFECT A PREDETERMINED FORM, AND ACTIVATING THE BINDER TO FIX THE POSITIONS OF PARTICLES IN SAID FORM.
Claim 2
Dependent Claim
92 words
IN THE PROCESS FO MECHANICALLY CONVERTING A SUPPLY OF MATERIAL INTO INTERMESHABLE PARTICLES DISPERSED IN AIR, AND DEPOSITING THE PARTICLES AND ACTIVATABLE BINDER FROM AIR SUSPENSION IN SUPERIMPOSED RANDOM RELATION TO FORM A MAT, THE STEPS OF APPLYING TO THE PARTICLES WHILE SUSPENDED IN AIR MEANS TO PROVIDE TACK, WHEREBY SAID TACK, WHEREBY SAID TACK ON DEPOSITION OF THE PARTICLES CREATES RESISTANCE TO INTERMESHING WITH THE PREVIOUSLY DEPOSITED PARTICLES, SHIFTING POSITIONS OF DEPOSITED PARTICLES TO EFFECT A PREDETERMINED FORM, AND ACTIVATING THE BINDER TO FIX THE POSITIONS OF PARTICLES IN SAID FORM.
References Cited (Backward Citations)
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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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |